Shadow was an opponent of
E. H. Crump's
political machine. Following the
Battle of Athens she wrote a research paper on the government of
McMinn County, Tennessee. She became secretary-treasurer of the
Meigs County Young Democratic Club in 1949. She became chair of the college activities divisions in the Young Democratic Clubs of America. Shadow announced her campaign for the
Democratic nomination for a seat in the
Tennessee House of Representatives from the 10th
floterial district on April 25, 1948. She defeated incumbent Representative
Walter White and Republican nominee Earl Mack Smith in the 1948 election after spending $270. She was the only woman elected to the state legislature in that election and the first unmarried woman elected to the state legislature, and received fourteen marriage proposals after her victory. She announced her reelection campaign on June 2, 1950, and defeated White in the election. She did not seek reelection in 1952, and was succeeded by J.R. Fischesser. Shadow was selected as secretary of the Democratic caucus in the state house in 1949. The Tennessee Press Corps voted her as "one of the five most able and effective members of the House of Representatives" during the 77th session. She was a member of a delegation sent by the
Tennessee General Assembly to the
second inauguration of Harry S. Truman. During her tenure in the state house she served on the Finance and Ways and Means committees. Shadow ran to represent
Davidson County, Tennessee, as a delegate to a constitutional convention in the 1952 election, but lost. She was a delegate to the
1956 Democratic National Convention from New Mexico and supported
Adlai Stevenson II. ==Later life==