- F. E. Clements & E. S. Clements 539
- F. E. Clements & E. G. Clements 340
- Frederick E. Clements; Edith Gertrude (Scharwtz) Clements 288
- Clements, F.E.; Clements, E.S. 126
- Clements, F.E. & Clements, E.S. 118
- Fredrick E Clements; Edith S Clements 88
- F. E. Clements; E. S. Clements 63
- Clements, F.E.; E.S. Clements 38
- F.E. Clements; E.S. Clements 30
- Clements, F. E.; Clements, E. S. 20
- F. E. Clements and E. S. Clements 16
- F. E. Clements; E.S. Clements 13
- Frederic E Clements; Edith S Clements 12
- Clements, F E; Clements, E S 10
- E. G. Clements 10
- F. E. and E. S. Clements 9
- E. S. Clements 6
- F. E. & E. S. Clements 5
- F. E. Clements, E. S. Clements 4
- Clements, Frederic Edward; Clements, Edith Gertrude 4
- F. E. Clements | E. G. Clements 4
- Clements,F.E. & Clements,E.G.S. 4
- F E Clements; E S Clements 3
- Clements, F.E.|Clements, E.S. 3
- Clements, E.S. & Clements, F.E. 3
- Frederick E. Clements|E.S. Clements 3
- F.E. Clements & E.S. Clements 3
- F.E. Clements & E.S. Clements 2
- E. S. Clements & F. E. Clements 2
- Clements, F.; Clements, E. 2
- Edith Clements 2
- Edith S Clements 2
- Clements,F.E. & Clements,E.S. 1
- E S Clements 1
- F.E. Clements, E.S. Clements 1
- F. E. et E. S. Clements 1
- Clements, F. E. & E. S. Clements (Coll. Delessert 1904) 1
- Frederic E. Clements; E. S. Clements 1
- L.E. Clements; E.S. Clements 1
- Clements, F. E.; E. S. Clements 1
- F.E. et E.S. Clements 1
- F.E. & E.S. Clements 1
- [collector unspecified]; E. S. Clements 1
- Clements F.E.; Clements E.S. 1
- Clemens, M.S.; Clements, E.S. 1
- F.E. Clements; E.S.Clements 1
- Frederic E. Clements & Edith Clements 1
- F E Clements; Edith S Clements 1
- Clements, F. E. & E. G. Clements (Coll. G) 1
- F. E. Clements; E. Cements 1