| A. Jack | J12 |
| A. Jack | J12 |
| A. A. JACK | J12 |
| Jack A. Culbertson, Paul B. Jacobson, Theodore E. Reller | J12 |
| A.D. Jack | J12 |
| A. Fingland Jack | 1883 | J12 |
| A. G. Jack | J12 |
| A. M. Jack | J12 |
| Jack A., Ph.D. Vernon | J12 |
| A. R. T. JACK | J12 |
| A.s. Jack | J12 |
| A. S. Jack | J12 |
| Jack, A. Sariego | J12 |
| Jack A., Sr. Rogers | J12 |
| Ad Jack | J12 |
| Adelheid Jack | J12 |
| Adler Jack | J12 |
| Jack, Adler | J12 |
| Adolphus A. Jack | J12 |
| Adolphus Alfred Jack | 1868–1945 | J12 |
| adolphus alfred jack | J12 |
| Adolphus Alfred Jack | J12 |
| Adolphus Alfred Jack | J12 |
| Adolphus Alfred Jack Jack | J12 |
| Adrian Jack | J12 |
| Adrienne Jack | J12 |
| Agnes Jack | J12 |
| Agnes Jäck | J12 |
| Agness Jack | J12 |
| Jack Agueros, William Alfred, Eugene Boe etc. | J12 |
| Ahmed H. El Jack | J12 |
| Ailna jack | J12 |
| Aktivitätenbuch JACK | J12 |
| Al Jack | J12 |
| Alan Jack | J12 |
| Albert Jack | J12 |
| Albert Jack | J12 |
| ALBERT JACK | J12 |
| Albert Jack | J12 |
| Albert E. Jack | J12 |
| Albert Jack Jack | J12 |
| Alex Jack | J12 |