- P. Bartsch 10,578
- J. Henderson & P. Bartsch 1,541
- Paul Bartsch 751
- Bartsch, Paul 585
- Henderson & P. Bartsch 119
- Bartsch, P. 112
- P. Bartsch & R. Greenfield 106
- J. B. Henderson | P. Bartsch 93
- P. Bartsch & Henderson 80
- P. Bartsch & H. Bartsch 63
- Henderson, John Brooks, Jr., Bartsch, Paul 58
- Henderson & Bartsch 55
- P. Bartsch & J. Henderson 37
- Bartsch & Cooke 36
- J. Henderson, P. Bartsch & Henderson 28
- P. Bartsch et al. 25
- Bartsch, Paul; Paul Bartsch Collection 23
- BARTSCH, P. 20
- Paul Bartsch, Academy Expedition-DuPont 16
- P. Bartsch & J. Morrison 16
- W. Palmer & P. Bartsch 16
- P. Bartsch & G. Myers 14
- Bartsch, P., R/V Caroline 13
- P. Bartsch & George Washington University zoology class 12
- Paul Bartsch, Henderson 11
- Collector(s): P. Bartsch 10
- P. Bartsch, J. Roller & L. Jarbo 10
- Amory & P. Bartsch 10
- P. Bartsch & Morrison 8
- Bartsch, P 8
- Roebling & P. Bartsch 8
- P Bartsch 7
- P. Bartsch & Pilsbry 7
- P. Bartsch & Horgan 6
- Pedro J. Bermúdez, Paul Bartsch 5
- P. Bartsch & Marshall 5
- P. Bartsch & United States Bureau of Fisheries 4
- Paul Bartsch 4
- Bartsch, P.; Rehder 4
- Bartsch P. 3
- V Caroline & Paul Bartsch 2
- Bartsch 2
- Bartsch, Paul; United States National Museum 2
- I.S. Oldroyd 2
- P. Bartsch & E. Palmer 2
- E. Palmer & P. Bartsch 2
- BARTSCH P 2
- Paul Bartsch, Joe Morrison 2
- Bartsch, Paul ; Bartsch, Paul 2
- Henderson, John; Bartsch, Paul 2