While DHL and his father were working on the stencils another undergraduate at Berkeley, Emma Trotskaia who was a mathematics student studying DNL's courses, assisted them. Emma would soon become Dick's wife and Dick and Emma Lehmer would become one of the most famous husband and wife mathematics teams.
Habang DHL at ang kanyang ama ay nagtatrabaho sa ibang stencils undergraduate at Berkeley, Emma Trotskaia na noon ay isang estudyante sa pag-aaral sa matematika DNL ng mga kurso, assisted ang mga ito. Emma ay lalong madaling panahon maging dick ng asawa at dick at Emma Lehmer ay maging isa sa mga pinaka-tanyag na asawa at asawa matematika team.