- FondsMordell - Papers of Louis Joel Mordell
- Series1-40 - Letters
- File19 - Miscellaneous Letters
- 105 more...
- Item19.106 - T.L.s., from B. van der Pol, Geneva
- Item19.107 - A.L.s., from G. Polya, Zurich
- Item19.108 - A.L.s., from G. Polya, Stanford
- Item19.109 - A.L.s., from Hans Rademacher, Princeton
- Item19.110 - A.L.s., from Hans Rademacher, Philadelphia
- Item19.111 - A.L.s., from A. R. Richardson, Swansea
- Item19.112 - A.L.s., from R. G. D. Richardson, Brown University, Rhode Island
- Item19.113 - A.L.s., from J. G. Semple
- Item19.114 - A.L.s., from T. Skolem, Oslo
- 27 more...