Has three children, one from each husband. Her son by third husband Eddie Sherman, Shawn Edward Arthur (later Sean Serman), is adopted and part Hawaiian, Chinese and Caucasian. Her other two children are son James Cross, a songwriter, and daughter Kerry Sherman.
Her son James "Spike" Cross from her marriage to actor James Cross died in an automobile accident in 1987.
In the movie All the President's Men (1976), both 'Donald O'Connor' and Peggy's daughters play secretaries who work side by side in the scene.
Longest recurring role was that of "Jenny Sherman", Steve McGarrett's (Jack Lord) secretary on the longest running police show "Hawaii Five-O" (1968). She was on the show from 1969 until 1976. The series ended in 1980.
Organized and was leader of a group of older women dancers called "Peg's Leg's" that entertained around Las Vegas. Was the daughter of vaudevillian parents, The Dancing Ryans. Made movie debut at age five.
She was still teaching and entertaining until just a few days prior to her admission to Sunrise Hospital in Las Vegas on September 24,2004 where she passed away on October 30, 2004. Peggy Ryan was 80 years old.