In June 2010 Harold F. Levison and others suggested on the basis of enhanced computer simulations that the Sun "captured comets from other stars while it was in its birth cluster".
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He wrote several books in the field, and edited and translated works by Plutarch.
From 1917 to 1958 worked at quality assurance department at Bell Laboratories with Walter Shewhart, George Edwards, Harry Romig, R. L. Jones, Paul Olmstead, E.G.D. Paterson, and Mary N. Torrey.
In 1947, Youngblood unseated Rabaut, and was elected as a Republican from Michigan's 14th congressional district to the 80th Congress, serving from January 3, 1947 to January 3, 1949 in the U.S. House.