Fredrick
  The name of CLAES HENDRICKSZEN's wife is in a contract dated 31 January 1661 between WILLEM JANSEN SLYCKOTEN (SLOT) and ADRIAEN SYMONSEN, we learn the following:

"On this day the 31st January 1661, appeared before me, Dirck Van Schelluyne, notary public, and before the aforenamed witnesses, WILLEM JANSZ SLYCKOTEN, as husband and guardian of NEELTIE FREDERICXSZ, widow of the late CLAES HENDRICSZ VAN SCHOONHOVEN..." (Neeltie signed her name NEELTGEN FREERICKS)