[1] In the 1950s, Day would take a break and tour around Europe, while her mother at home would write her saying that she would love watching the new television shows featuring horses — Rawhide, Have Gun Will Travel and Wagon Train.

In 1959, Day, who loved horses, met with Wagon Train producer Howard Christie, who let her write her own scripts, as well as doctor others, for the series.

[1] She would become well-versed in the Western genre, writing for such series as Here Come the Brides, The High Chaparral, Tate, Temple Houston, The Virginian, The Big Valley, The Outcasts, The New Land, and Little House on the Prairie.

She also wrote for such other series as Medical Center, My Friend Tony, Judd, for the Defense, Peyton Place, Marcus Welby, M.D., Dr. Kildare, Court Martial, Hawaii Five-O and Dennis the Menace.

They would write scripts for series such as Bracken's World, Matt Helm, The New Adventures of Perry Mason, Electra Woman and Dyna Girl and Barnaby Jones.