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J. M. Roberts
Penelope J. E. Davies
Alan and John Roberts Raven
R. W. und E B. Roberts Cordier

See also:

Penelope J.E. Davies, Walter B. Denny, Frima Fox Hofrichter, Joseph F. Jacobs, Ann M. Roberts, David Simon
Penelope J.E. Davies, Walter B. Denny, Frima Fox Hofrichter, Joseph F. Jacobs, Ann M. Roberts, David L. Simon