In 1955, the PCUSA voted to begin ordaining women as ministers. The following year, on Oct. 24, 1956, Towner became the first woman ordained to the ministry by PCUSA, with her ordination taking place at Syracuse-Cayuga Presbytery in New York. (Nine years later, the church's southern branch, the Presbyterian Church in the U.S. (PCUS) would ordain its first woman minister,
Rachel Henderlite.) Since there were a number of Presbyterian women preparing for ordination in the wake of the PCUSA vote, Towner was initially not sure whether she was actually the first to be ordained. Her ordination was covered by
Life photographer
Alfred Eisenstaedt, and photographs of Towner's ordination ceremony appeared in a five-page spread in the November 12, 1956, issue of the magazine. After being ordained, Towner returned to her congregation in Pennsylvania, though she was never asked to conduct services or preach in that church; and she was also made assistant pastor of First Presbyterian Church in Syracuse. Afterwards, she served at congregations in Kalamazoo, Michigan (First Church, 1958–69); Indianapolis, Indiana (Northminster Presbyterian Church, 1970–72); and Waukesha County, Wisconsin (Kettle Moraine parish, 1973-1990). At first she worked mainly in Christian education and as an assistant or associate pastor, only later becoming a full pastor. It was not until her very last posting that she was paid equally with male pastors. She spent 17 years in Waukesha County, where she was one of three co-pastors in a parish with six churches. In 1981, the year that PCUSA celebrated the 25th anniversary of women's ordination in the church, Towner was elected vice-moderator of the church's General Assembly. Among her activities that year was a trip to Korea to talk to Presbyterian congregations, as the Korean churches were then considering whether to ordain women. In 1990, at the end of her Milwaukee pastorate, she retired to Sarasota, Florida. ==Honors and legacy==