I just came across the January 1975 edition of Science & Mechanics magazine. There is a wonderful story about your father in this magazine. He was a TRUE AMERICAN INVENTOR AND WWII WAR HERO.
I looked through the photos, and saw the picture of the windmill that was featured in the magazine.
Another interesting note: Our grandson is also born on April 13th. He is 18.
I would sure send you this magazine if you would like to add it to your family's history collection. The magazine is in very nice condition too. Just let me know.
You may contact me at firstname.lastname@example.org We own a family operated antique and classic car museum here in Rapid City SD.
I am inserting a photo of the magazine article about your father's awesome talent of invention. Inside the cover index:
Top Inventor In Sun's Dream Department
Blessings from a South Dakotan who enjoyed the story about your father.
Rapid City, SD