Science Herman Milton Heyn Posted by Who's Who Site Administrator on July 1, 2018September 16, 2019 Most Recent Title: Astronomer-Astrophotographer Company: downtown Balt. Industry: Science Years in Industry: 31 Years affiliated with Marquis Who’s Who: 19 Contact Herman Milton Heyn: Name(required) Email(required) Website Comment(required) Submit Δ Share this:TwitterFacebookLinkedInLike this:Like Loading...