b. 1915 Grand Rapids, Michigan
d. 1985 Grand Rapids, Michigan

Weidenaar studied at the Kendall School of Design and the Kansas City Art Institute in the 1930s. He was a member of many artistic organizations, widely exhibiting in the 1930s and 1940s. While also a teacher and a book author and a prolific etcher, he is best known for his exquisite black and white mezzotints. In the early 1950s he experimented with creating color mezzotints. He found he would have to learn the process himself as he could find no reference that covered the technique other than to say it either could not be done or that the results would be unsatisfactory. Through sheer persistence he perfected the method. Others after him (such as Schkolnyk) or contemporary with him, would have to do the same.