his widow donated his papers to northern michigan university in 1992. the collection is a part of the central upper peninsula and northern michigan university archives and includes unpublished manuscripts, case files from his days as a lawyer, some files related to his tenure on the michigan supreme court and personal correspondence. most of his supreme court-related files are in the state archives in lansing. in 1995, voelker was posthumously inducted into the national freshwater fishing hall of fame in hayward, wisconsin.