This following is a listing, as of Sept. 2018, of Zeta Lambda brothers that we have no email contact for. If you have information on any of the following brothers, please email alumni@tulsasigmanu.com
| Badge | Fullname |
| Z L 0004 | Mr. Earl E. Watkins |
| Z L 0011 | Mr. William G. Cox |
| Z L 0016 | Mr. Robert J. Hampton |
| Z L 0017 | Mr. John G. Hudson |
| Z L 0019 | Mr. Henry L. King, Jr. |
| Z L 0020 | Mr. James M. McManus, Jr. |
| Z L 0023 | Mr. Alfonso R. Camacho |
| Z L 0031 | Mr. Wilburn E. Chance |
| Z L 0037 | Mr. Charles A. Clark |
| Z L 0038 | Mr. Robert E. Brown |
| Z L 0040 | Mr. Wyman G. Hart |
| Z L 0041 | Mr. Robert L. Clemons |
| Z L 0046 | Mr. John M. Elliott, Jr. |
| Z L 0049 | Mr. Bill L. Cole |
| Z L 0053 | Mr. James G. Freiburger |
| Z L 0055 | Mr. Barney J. Ryan |
| Z L 0056 | Mr. Thomas A. Morgan |
| Z L 0057 | Mr. Brooks G. Franklin, Jr. |
| Z L 0058 | Mr. Bruce A. Duckworth |
| Z L 0059 | Mr. Donald J. Hoose |
| Z L 0060 | Mr. Charles S. Letcher |
| Z L 0063 | Mr. Ralph D. Crowell |
| Z L 0066 | Mr. Douglas L. Mobley |
| Z L 0067 | Mr. William M. Cox |
| Z L 0068 | Mr. Haskell Ferguson, Jr. |
| Z L 0071 | Mr. James D. Patterson |
| Z L 0072 | Mr. Jack I. Toland |
| Z L 0077 | Mr. Richard D. Huston |
| Z L 0079 | Mr. John T. McComb |
| Z L 0081 | Mr. Alfred W. Gerow |
| Z L 0082 | Mr. William R. Gregoire |
| Z L 0084 | Mr. Ronald D. Morris |
| Z L 0085 | Mr. Lynn M. Geyer, Jr. |
| Z L 0089 | Mr. Donald G. Havlick |
| Z L 0090 | Mr. Burton B. Cox |
| Z L 0092 | Mr. Wilbur L. Goodnow |
| Z L 0093 | Mr. Thomas R. Harrington |
| Z L 0094 | Mr. John L. Rader |
| Z L 0095 | Mr. Robert I. Young |
| Z L 0096 | Mr. John M. Johnson |
| Z L 0097 | Mr. Ahmed S. A. Abdul-Rahman |
| Z L 0098 | Mr. Donald J. Gregory |
| Z L 0099 | Mr. Quintin J. Cristy, Jr. |
| Z L 0101 | Mr. James H. Martin |
| Z L 0102 | Mr. Thomas L. Clark |
| Z L 0103 | Mr. Patrick H. Gleason, Jr. |
| Z L 0104 | Mr. Gregory A. Farmer |
| Z L 0105 | Mr. Walter H. Kopp |
| Z L 0106 | Mr. Richard W. Cook |
| Z L 0109 | Mr. Michael A. Davis |
| Z L 0111 | Mr. Robert J. Kluwin, P.E. |
| Z L 0112 | Mr. Roger J. Rocka |
| Z L 0113 | Mr. James W. Wallis |
| Z L 0114 | Mr. Robert T. McSpirit |
| Z L 0115 | Mr. Charles R. Wolfe |
| Z L 0117 | Mr. Carl D. Cupp |
| Z L 0120 | Mr. David W. Grace |
| Z L 0123 | Mr. Robert C. Hudson |
| Z L 0124 | Mr. Val C. Reneau |
| Z L 0128 | Mr. Bardhyl Quku |
| Z L 0129 | Mr. Charles A. Ekstrom |
| Z L 0130 | Mr. James R. Ballard |
| Z L 0133 | Mr. Charles J. Gasperi |
| Z L 0134 | Mr. Grover H. Todd |
| Z L 0137 | Mr. Richard E. Law, Jr. |
| Z L 0138 | Mr. Joel W. Walenta |
| Z L 0139 | Mr. Raymond G. Fenner |
| Z L 0141 | Mr. Dixon M. Morrison |
| Z L 0144 | Mr. James L. Carver |
| Z L 0145 | Mr. William D. Saulmon |
| Z L 0146 | Mr. Thomas C. Herr |
| Z L 0147 | Mr. Robert L. Cheek, Jr. |
| Z L 0149 | Mr. Paul G. Masters |
| Z L 0150 | Mr. Arthur R. Lorenz |
| Z L 0151 | Mr. James D. Boswell |
| Z L 0152 | Mr. Grant R. Brown |
| Z L 0153 | Mr. Robert L. Beach |
| Z L 0154 | Mr. Lloyd A. Deverick |
| Z L 0156 | Mr. Ronald B. Stockwell |
| Z L 0157 | Mr. Benjamin A. Whitney, III |
| Z L 0158 | Mr. Robert C. Adams |
| Z L 0159 | Mr. Paul B. Naylor |
| Z L 0161 | Mr. Larry G. Harmon |
| Z L 0162 | Mr. William C. Pratt, Jr. |
| Z L 0164 | Mr. Bruce G. Allen |
| Z L 0165 | Mr. Judson M. Zellmer |
| Z L 0166 | Mr. Theodore R. Murray |
| Z L 0167 | Mr. James S. Dill |
| Z L 0168 | Mr. John G. Ghostbear |
| Z L 0170 | Mr. Kent F. Thomas |
| Z L 0171 | Mr. Hunter L. Johnson, III |
| Z L 0173 | Mr. John A. Leonard |
| Z L 0174 | Mr. Michael R. Minshall |
| Z L 0175 | Mr. Edmund C. Werre |
| Z L 0176 | Mr. Bobby J. McDonough |
| Z L 0177 | Mr. Michael S. Swan |
| Z L 0178 | Mr. Richard E. Whitaker |
| Z L 0180 | Mr. William A. Lang, Jr. |
| Z L 0181 | Mr. John P. Ewert |
| Z L 0183 | Mr. Gordon O. Lee |
| Z L 0184 | Mr. Gary W. Stanfield |
| Z L 0185 | Mr. James E. Cinocca |
| Z L 0186 | Mr. Monte W. Strout |
| Z L 0187 | Mr. Gary L. Harkreader |
| Z L 0188 | Mr. Daniel P. R. Pavlak |
| Z L 0189 | Mr. Frank H. W. Zigrino, Jr. |
| Z L 0190 | Mr. Richard T. Parks |
| Z L 0191 | Mr. Jimmy H. Naylor |
| Z L 0192 | Mr. Michael S. McKillip |
| Z L 0194 | Mr. Carl H. Fiddner |
| Z L 0195 | Mr. William H. Pugh, III |
| Z L 0196 | Mr. John S. Street |
| Z L 0200 | Mr. Thomas D. Churchwell |
| Z L 0201 | Mr. James K. Crawford, III |
| Z L 0202 | Mr. Douglas O. Miller |
| Z L 0205 | Mr. Richard O. Bland |
| Z L 0207 | Mr. Conrad C. Lysiak |
| Z L 0208 | Mr. Frank S. King |
| Z L 0211 | Mr. Earl B. Roberson |
| Z L 0212 | Mr. Rickey A. McGhee |
| Z L 0213 | Mr. Jene W. Conwell |
| Z L 0214 | Mr. John B. Thompson |
| Z L 0215 | Mr. Larry S. Lyon |
| Z L 0217 | Mr. John M. George |
| Z L 0218 | Mr. Michael R. Stapp |
| Z L 0219 | Mr. Ross L. Bell |
| Z L 0220 | Mr. David B. Watson |
| Z L 0224 | Mr. Charles M. McCool |
| Z L 0225 | Mr. Donald N. Allen |
| Z L 0226 | Mr. George R. Gilmore |
| Z L 0227 | Mr. Murray E. Richey |
| Z L 0228 | Mr. Walter G. Barnes |
| Z L 0229 | Capt. Brian W. Wretschko |
| Z L 0230 | Mr. Robert P. Legging, Jr. |
| Z L 0232 | Mr. John S. Johnson |
| Z L 0233 | Mr. Philip C. Van Vleck |
| Z L 0235 | Mr. Charles N. Schausten |
| Z L 0237 | Mr. Steven L. Ward |
| Z L 0239 | Mr. James B. Marascio |
| Z L 0240 | Mr. Jon A. Martin |
| Z L 0242 | Mr. Charles W. Brown, Jr. |
| Z L 0246 | Mr. Terry C. Cohea |
| Z L 0247 | Mr. Richard B. Ellis |
| Z L 0248 | Mr. John F. Connelly, III |
| Z L 0249 | Mr. Edward F. Novak |
| Z L 0250 | Mr. William M. Chandler |
| Z L 0251 | Mr. Rodger T. Tucker |
| Z L 0252 | Mr. Richard L. Blanchard |
| Z L 0253 | Mr. Kenneth F. Shoemaker |
| Z L 0254 | Mr. William T. Jeffers, Jr. |
| Z L 0255 | Dr. Stephen F. Shoemaker |
| Z L 0257 | Mr. Robert A. King |
| Z L 0259 | Mr. John T. Wills |
| Z L 0260 | Mr. Douglas A. Jorden |
| Z L 0261 | Mr. John H. Lassiter |
| Z L 0263 | Mr. James E. Ryburn, Jr. |
| Z L 0266 | Mr. Thomas A. Hildy |
| Z L 0267 | Mr. Henry J. Silver |
| Z L 0269 | Mr. Gary C. Soderstrom |
| Z L 0270 | Mr. Kirtley M. Rollins, III |
| Z L 0271 | Dr. James C. King, III |
| Z L 0272 | Dr. John B. Forrest |
| Z L 0273 | Mr. Charles W. Young |
| Z L 0274 | Mr. Keith B. Whitaker |
| Z L 0275 | Mr. Steven B. Bernstein |
| Z L 0276 | Mr. John A. Hotaling, Jr. |
| Z L 0277 | Mr. Douglas J. Lanier |
| Z L 0278 | Mr. Clinton E. Fager |
| Z L 0279 | Mr. Rodney W. Smith |
| Z L 0280 | Mr. John D. Hendrix |
| Z L 0282 | Mr. Thomas G. Eagan |
| Z L 0283 | Mr. George B. Wright |
| Z L 0284 | Mr. Clark J. Vanskiver |
| Z L 0285 | Mr. William P. Heffernan |
| Z L 0286 | Mr. John P. Middleton, III |
| Z L 0288 | Mr. Kent B. Quackenbush |
| Z L 0290 | Mr. Kenton D. Miller, Jr. |
| Z L 0291 | Mr. William S. Walker |
| Z L 0292 | Mr. Frank Stabler, Jr. |
| Z L 0293 | Mr. Paul D. Noyes |
| Z L 0294 | Mr. Richard M. Ramseur |
| Z L 0295 | Mr. Mark R. Ellis |
| Z L 0296 | Mr. Richard S. Williams |
| Z L 0297 | Mr. Gary F. Smart |
| Z L 0298 | Mr. Kelvin D. Van Osdol |
| Z L 0299 | Mr. Kenneth R. Sigmon |
| Z L 0300 | Mr. Layn R. Phillips |
| Z L 0301 | Mr. David L. Pinnell |
| Z L 0302 | Mr. Reed D. Killam |
| Z L 0303 | Mr. Roy L. Genevich |
| Z L 0304 | Mr. Michael J. Graham |
| Z L 0306 | Mr. Blaine W. Hemphill |
| Z L 0307 | Mr. Mark C. Andrews |
| Z L 0308 | Mr. John F. Oldenburg |
| Z L 0309 | Mr. Bruce M. Bittner |
| Z L 0310 | Mr. Timothy J. Bennett |
| Z L 0311 | Mr. Michael L. Erwin |
| Z L 0312 | Mr. David K. Slankard |
| Z L 0313 | Mr. James R. Edison |
| Z L 0314 | Mr. Richard B. Lane |
| Z L 0315 | Mr. Jerry J. Fry |
| Z L 0316 | Mr. Steve A. Geddie |
| Z L 0317 | Mr. Michael A. Quoss |
| Z L 0318 | Mr. Randal D. Hamilton |
| Z L 0319 | Mr. Gail G. Gibbon |
| Z L 0320 | Mr. Timothy R. Pollard |
| Z L 0321 | Mr. Raymond J. Peterson |
| Z L 0322 | Mr. Paul C. Russell |
| Z L 0323 | Mr. Todd F. Sprague |
| Z L 0324 | Mr. Michael O. Jones |
| Z L 0326 | Mr. Thomas D. Merker |
| Z L 0327 | Mr. John P. Ross, Jr. |
| Z L 0328 | Mr. Gerald W. Carpenter |
| Z L 0329 | Mr. Michael V. Borth |
| Z L 0330 | Mr. Steven A. Hill |
| Z L 0331 | Mr. Jeffrey L. Schmuhl |
| Z L 0332 | Mr. Farley L. Snell |
| Z L 0334 | Mr. Jack D. Ward, Jr. |
| Z L 0336 | Mr. Keith L. Long |
| Z L 0337 | Mr. Matthew W. Loveless |
| Z L 0338 | Mr. Roy H. Breslawski |
| Z L 0341 | Mr. John J. Day, II |
| Z L 0342 | Mr. Jack A. Woods |
| Z L 0345 | Mr. Craig R. Malcolm |
| Z L 0346 | Mr. John R. French, Jr. |
| Z L 0347 | Mr. Steven C. Rohlfing |
| Z L 0348 | Mr. Scott A. Ellison |
| Z L 0350 | Mr. John F. DeDitius |
| Z L 0351 | Mr. Daniel D. Puzin |
| Z L 0352 | Mr. Alan S. Cougler |
| Z L 0353 | Mr. Thomas J. Young |
| Z L 0354 | Mr. John V. Rylko |
| Z L 0355 | Mr. Everett M. Wilson |
| Z L 0356 | Mr. Ted A. Thull |
| Z L 0360 | Mr. Steven K. Haden |
| Z L 0363 | Mr. Jeffery T. Wilson |
| Z L 0364 | Mr. Jimmy C. Wilson |
| Z L 0368 | Mr. Michael K. Heinz, Jr. |
| Z L 0371 | Mr. Stephen J. Wenzl |
| Z L 0372 | Mr. Richard A. Fisher |
| Z L 0375 | Mr. Steven L. White |
| Z L 0376 | Mr. Todd E. Daer |
| Z L 0378 | Mr. John R. Catterlin |
| Z L 0380 | Mr. Drew J. Epps |
| Z L 0381 | Mr. Charles A. McLaughlin |
| Z L 0382 | Mr. Martin L. Mange |
| Z L 0383 | Mr. Thomas G. Walker |
| Z L 0384 | Mr. Lance L. Farlow |
| Z L 0389 | Mr. Russell L. Grant |
| Z L 0390 | Mr. Patrick A. Ryan |
| Z L 0391 | Mr. Kevin G. DeVinney |
| Z L 0393 | Mr. Paul M. McClain |
| Z L 0395 | Mr. Paul S. Kesner |
| Z L 0397 | Capt. James D. Richardson |
| Z L 0398 | Mr. Jeffrey S. Harrison |
| Z L 0400 | Mr. Harry F. Clay, Jr. |
| Z L 0401 | Mr. Bruce S. Kleppe |
| Z L 0403 | Mr. Christopher P. Brown |
| Z L 0404 | Mr. David L. Tulk |
| Z L 0407 | Mr. Morris R. Goff |
| Z L 0410 | Mr. Brook S. Bowles |
| Z L 0411 | Mr. Marcos R. Archuleta |
| Z L 0413 | Mr. Steven P. Carson |
| Z L 0414 | Mr. Don C. Hocker, Jr. |
| Z L 0417 | Mr. William G. Holt |
| Z L 0419 | Mr. Timothy G. Young |
| Z L 0421 | Mr. John P. Dudek |
| Z L 0422 | Mr. David K. Sanford |
| Z L 0424 | Mr. Frank A. McCorkle |
| Z L 0425 | Mr. Mark L. Davidson |
| Z L 0426 | Mr. Phi N. Tran |
| Z L 0427 | Mr. Michael L. Owens |
| Z L 0428 | Mr. Donald R. Abel |
| Z L 0430 | Mr. Robert L. Garner, III |
| Z L 0431 | Mr. John R. Criner |
| Z L 0434 | Mr. Kevin E. Giefer |
| Z L 0437 | Mr. David A. Clonts |
| Z L 0438 | Mr. David L. Abboud |
| Z L 0439 | Mr. James R. Keller |
| Z L 0441 | Mr. John W. Finno |
| Z L 0442 | Mr. Christopher N. Coulter |
| Z L 0443 | Mr. Fred R. Lynn |
| Z L 0444 | Mr. Troy J. Baker |
| Z L 0448 | Mr. George W. Snedden, IV |
| Z L 0449 | Mr. Judson L. Chester |
| Z L 0451 | Mr. Brock W. Beasley |
| Z L 0454 | Mr. William S. W. Hunzicker |
| Z L 0456 | Mr. John L. Belty |
| Z L 0457 | Mr. Gary L. Baker |
| Z L 0458 | Mr. Mark W. Fink |
| Z L 0459 | Mr. Michael A. Last |
| Z L 0463 | Mr. David C. Cole |
| Z L 0465 | Mr. Todd C. Murtha |
| Z L 0466 | Mr. Bryan H. Brock |
| Z L 0467 | Mr. Michael R. Jackson |
| Z L 0470 | Mr. Craig F. Burns |
| Z L 0473 | Mr. Lance D. Martin |
| Z L 0478 | Mr. Jonathan C. Barnes |
| Z L 0479 | Mr. Keith A. MacDonald |
| Z L 0482 | Mr. James A. White |
| Z L 0484 | Mr. Russell T. Brown |
| Z L 0486 | Lt. Christopher H. Robertson |
| Z L 0491 | Mr. Patrick D. Edie |
| Z L 0500 | Mr. Johnny P. Taylor |
| Z L 0503 | Mr. Bill Fisher |
| Z L 0529 | Mr. Brandan E. Jordan |
| Z L 0541 | Mr. Jeffrey D. Goodwin |
| Z L 0556 | Mr. James J. Paonessa |
| Z L 0565 | Mr. Agostino V. Coccia |
| Z L 0568 | Mr. Dale E. Mondloch |
| Z L 0574 | Mr. Brent W. Henderson |
| Z L 0580 | Mr. David K. Russell |
| Z L 0581 | Mr. DaShawn C. Davis |
| Z L 0585 | Mr. Cory J. Anderson |
| Z L 0593 | Mr. Matthew R. Franzen |
| Z L 0594 | Mr. Anibal Araya |
| Z L 0597 | Mr. Adam J. Friedl |
| Z L 0598 | Mr. Robert N. Mitchell, II |
| Z L 0599 | Mr. Christopher M. Hare |
| Z L 0602 | Mr. Allen P. Carney |
| Z L 0603 | Mr. Bryan M. Kirby |
| Z L 0605 | Mr. Eric W. Raasch |
| Z L 0607 | Mr. James J. Turnini |
| Z L 0610 | Mr. Oleg Roytman |
| Z L 0615 | Mr. Seth R. Smith |
| Z L 0617 | Mr. Hai V. Luong |
| Z L 0619 | Mr. Lucas M. Oswalt |
| Z L 0620 | Mr. William D. Peck, III |
| Z L 0621 | Mr. Sean M. Davis |
| Z L 0624 | Mr. Shawn P. Nichols |
| Z L 0625 | Mr. John M. Patrick |
| Z L 0626 | Mr. Stuart M. Letcher |
| Z L 0631 | Mr. Raymond L. Lahann |
| Z L 0636 | Mr. Billy E. Young |
| Z L 0640 | Mr. Michael T. Boyd |
| Z L 0642 | Mr. James P. Kelley |
| Z L 0643 | Mr. Robert N. Etheridge |