[citation needed] After attending St. Mary's for "her conventional education", Seymour studied at the American Laboratory Theatre.

[4] She died of heart failure[5] at age 79 in Los Angeles and is interred in Westwood Village Memorial Park Cemetery.

[citation needed] Seymour's first professional activity as an entertainer came with the Jitney Players, for which she earned $15 weekly.

[4] According to the 06/25/1938 issue of WLS Radio's "Stand By" magazine, Seymour was living in the north side of Chicago.

[3] She was also a member of the casts of Joyce Jordan, Girl Interne; Tom Bradley; Against the Storm; and King Arthur, Junior.

[8] In 1961, she starred opposite Ed Wynn, in the “Rawhide” episode “25 Santa Clauses.” She also "had a running part on a CBS soap opera called The First Hundred Years.

She played the role of Millie Eastman, a retired head nurse of Rampart General who tried to commit suicide by overdosing on pills.

During her recovery at Rampart, she is placed in a semi-private room with Jean Clark (Dawn Lyn), whom she starts mentoring for emotional support.