- Peter Russell Johnston 3,770
- Peter R. Johnston 637
- P.R. Johnston 473
- Peter Russell Johnston | Eric H. C. McKenzie 398
- Barbara C. Paulus | Peter Russell Johnston 305
- Peter Russell Johnston | EM Gibellini 236
- Gary Joseph Samuels | Peter Russell Johnston 204
- Eric H. C. McKenzie | Peter Russell Johnston 203
- Peter Russell Johnston | Barbara C. Paulus 128
- Gary Joseph Samuels | AP Hawthorne | Peter Russell Johnston | R.H. Petersen 95
- Peter Russell Johnston | Ross Ewen Beever 89
- Barbara C. Paulus | Aidan J. O'Donnell | Peter Russell Johnston 87
- Peter Russell Johnston | Gary Joseph Samuels 85
- Gary Joseph Samuels | Ross Ewen Beever | Peter Russell Johnston | R.H. Petersen 78
- Peter Russell Johnston | Gary Joseph Samuels | LM Kohn 74
- Gary Joseph Samuels | Peter Russell Johnston | R.H. Petersen 70
- Peter Russell Johnston | BM Spooner 62
- Peter Russell Johnston | S Whitton 56
- Peter Russell Johnston | A.K. Mills 55
- Peter Russell Johnston | SR Whitton 54
- Gary Joseph Samuels | Peter Russell Johnston | T Matsushima | Amy Y. Rossman 53
- Peter Russell Johnston | T Hosoya 48
- Peter Russell Johnston | Gary Joseph Samuels | R.H. Petersen 46
- Barbara C. Paulus | Ross Ewen Beever | Peter Russell Johnston 42
- Peter Russell Johnston | Gary Joseph Samuels | Ross Ewen Beever | R.H. Petersen 42
- Gary Joseph Samuels | Peter Russell Johnston | ME Lanigan 39
- Peter Russell Johnston | L Lorenzo 36
- Peter Russell Johnston | I Gamundi 34
- Peter Russell Johnston | Ross Ewen Beever | Barbara C. Paulus 34
- Gary Joseph Samuels | Peter Russell Johnston | LM Kohn 33
- Peter Russell Johnston | Ross Ewen Beever | Eric H. C. McKenzie 32
- Peter R. Johnston | Stephanie L. Parkes 29
- Ross Ewen Beever | Peter Russell Johnston 27
- Peter Russell Johnston | Gary Joseph Samuels | R.H. Petersen | Ross Ewen Beever 27
- Peter Russell Johnston | JS Dugdale | H Donner 27
- Peter Russell Johnston | T Gaskell 25
- Peter Russell Johnston | Egon Horak 25
- Peter Russell Johnston | Gary Joseph Samuels | ME Lanigan 24
- P. Johnston 24
- Barbara C. Paulus | Peter Russell Johnston | Ross Ewen Beever 24
- Peter Russell Johnston | S Mortimer | S Horak 23
- Peter Russell Johnston | Barbara C. Paulus | Shaun Ross Pennycook 22
- Johnston, P.R. 22
- Peter Russell Johnston | Steven L. Stephenson | S Horak 22
- Peter Russell Johnston | M Rajchenburg 21
- Peter Russell Johnston | Peter Kenneth Buchanan | M Rajchenberg 20
- Gary Joseph Samuels | AP Hawthorne | Peter Russell Johnston | Egon Horak | R.H. Petersen 19
- Gary Joseph Samuels | AP Hawthorne | R.H. Petersen | Peter Russell Johnston 19
- Peter R. Johnston | Stephen R. Whitton 18
- Gary Joseph Samuels | Peter Kenneth Buchanan | Peter Russell Johnston 18