Ruth Thompson (September 15, 1887 – April 5, 1970) was a Republican politician from the U.S. state of Michigan.Thompson was born in Whitehall, Michigan and attended the public schools. She graduated from Muskegon Business College of nearby Muskegon in 1905, and became a lawyer with a private practice. She was registrar of probate court of Muskegon County and judge of probate from 1925 to 1937. She gained national recognition as an advocate for children's rights during that period. She was elected the county's first female state representative in 1938 and served as a member of the Michigan House of Representatives (Muskegon County 1st district) from 1939 to 1941. Wikipedia