who played the mother on my three sons
My Three Sons The following year in the tenth season, 1969-1970, Steve remarries, taking widowed teacher Barbara Harper (Beverly Garland) as his wife; she brings with her a 5-year-old daughter, Dorothy "Dodie" (Dawn Lyn), so Steven now had a stepdaughter whom he also subsequently adopts. Also, the last year-and-a-half of the series feature fewer appearances of both Don Grady and Stanley Livingston. Grady's character was written out of the show at the end of the 11th season, which allowed for his wife Katie and their triplet sons to remain within the Douglas household the following season (as a structural engineer Robbie was working on a bridge construction in Peru). Chip and his teen wife Polly (Ronne Troup) (who eloped after Polly's disciplinarian father refused to sanction the marriage) move into their own apartment.