Includes portraits and genealogies of individuals; but presidents always Yb13 and faculty members Yb15 or with class Yca-Ycz if Yale graduate
| Yca | Yale College B.A. and Ph.B. (by class) |
| Ycb | Sheffield Scietific School Ph.B. & B.S. (by class) |
| Ycc | Doctors of Philosophy (A-Z) |
| Ycd | Masters of Arts (A-Z) |
| Yce | Engineers (A-Z) |
| Ycf | Masters of Science (A-Z) |
| Ycg | Ex-graduates: special students, research fellows, etc. (A-Z) |
| Ych | School of Architecture |
| Yci | School of Medicine (by class) |
| Ycj | School of Law; bachelors (by class) |
| Yck | School of Law; higher degrees (A-Z) |
| Ycl | Divinity School (by class) |
| Ycm | School of Fine Arts including School of Drama until 1956 (by class) |
| Ycn | School of Music (by class) |
| Ycp | Forestry School (by class) |
| Ycr | School of Nursing (by class) |
| Ycx | Certificates (A-Z) |
| Ycy | Honorary degrees - biographical (A-Z) |
| Ycz | Yale benefactors (e.g. Elihu Yale; but Yb15 for Yale founders and fellows) |