Davis returned to Independence and taught at the William Chrisman High School. He later worked at NBC in New York as the educational programs supervisor. By 1949, Davis was president of the Ballet Theater of New York.[1] He was also a member of the American National Theater Association's board of directors. Davis produced Hamlet at the Elsinore Castle in Denmark. It was the first American production of the play in Denmark. He produced the 1952 touring revival of Porgy and Bess, which starred Cab Calloway, William Warfield, and Leontyne Price.[1] The State Department sponsored the production in Madrid and Moscow.[2]
Davis became owner of a weekly Cripple Creek, Colorado, newspaper in 1951.[2] The Cripple Creek District Museum in Colorado was founded by Blevins Davis and Margaret Giddings in 1953.[4] Due to financial obligations of more than $400,00, Davis sold his Glendale Farm in 1959.[2]
Margaret died at St. Luke's Hospital in Kansas City, Missouri, on March 18, 1948, of a heart attack. Davis received her nine-million-dollar fortune upon her death. He rebuilt and renovated his Glendale Farm in Independence. In 1949, Davis purchased the Claremont Estate in Colorado Springs, Colorado. The mansion, which he renamed Trianon, was sold to the Sisters of St. Francis Seraph in 1952.[1]Woodmen Sanatorium, also in Colorado Springs, was purchased by Davis in July 1950. His wife, Marguerite Davis, a railroad heiress died in 1948 and wished to have her fortune used for charitable purposes. The Modern Woodmen Sanatorium property and Trianon were sold to the Poor Sisters of St. Francis (Sisters of St. Francis of Perpetual Adoration) for $1 in 1952. The combined fortune that they received was worth $2,325,000 (equivalent to $26,378,810 in 2023).[5][6][7]
In the 1950s, Davis moved to Lima, Peru. While in London on a business trip, Davis died of a heart attack[1] on July 16, 1971. He had no surviving children.[2] His Princeton obituary stated that he lived a "colorful career" and spent $10 million during his "high-living days".[2]