[1][2] Astroth joined the United States Coast Guard in 1942 where, he served during World War II until his Honorable Discharge in 1945.

[1][2] He played the majority of the 1946 season with the Lancaster Red Roses of the Interstate League before being promoted back to the Athletics for four games in September.

[3] After two more seasons spent in the minor leagues, Astroth rejoined the Athletics in 1949 where he served as reserve catcher behind Mike Guerra.

[6] On May 16, 1956, Astroth's contract was purchased from the Kansas City Athletics by the San Diego Padres of the Pacific Coast League.

[1] After his baseball career, Astroth ran two family businesses—a bowling alley and a dairy bar—before working for General Copper and Brass in Collingdale, Pennsylvania.