Clapp akaenderera mberi nedzidzo dzake dzakakura dzakapedza kudzidza paLouis Agassiz's Anderson School of Natural History paPenikese Island, Buzzard's Bay, MA muna 1874. Akagamuchira chirevo chaAgassiz "Dzidza zvisikwa, kwete mabhuku!" uye akachishandisa pakudzidzisa kwake. Akaunza ruzivo rwake kuburikidza nechikoro che embryology paMount Holyoke, yakatsiviwa ne specimens kubva kune alumni kunze kwenyika. Pamwe nevamwe veNew England entomologists, Clapp akaunganidza zvipembenene kubva kuWhite Mountains yeNew Hampshire muzhizha ra1875 uye kubva pakati peAtlantic nyika muna 1877. (Stops yaisanganisira marine station Johns Hopkins muBeaufort, uye Smithsonian Institution muWashington D.C.)
New Hampshire