This photo is from around 1930-1931 She would have been about 23 at the time. She really does not look that different from when she was 17!
A picture of Miss Stanwyck from 1937. She turned 30 that year, and yet she doesn't look any older than when she was 25.
Barbara Stanwyck circa 1943. She still doesn't look that much older than she was in 1930. She would have been 36, but to me she still looks like she is in her mid-twenties!
This picture is from 1949. I think Miss Stanwyck looks a little more mature in this shot, but I think that is because of her hair and make up. At 42 she still looked much younger.
A publicity shot for the film Executive Suite, released in 1953. Barbara Stanwyck does look more mature than she was in her twenties, but not by much. At 46 she looks closer to 30.
A black and white promotional shot for the TV show The Big Valley, which debuted in 1965. By this point Miss Stanwyck had some grey hair and a few wrinkles, but she did not look terribly much older than she had been in the Forties. She was 58 when the show debuted, but would have looked closer to 40 if not for the grey hairs.
Many actresses age gracefully, but my point is that they do age. Aside from a few wrinkles and grey hair, Barbara Stanwyck appeared to age very little from her mid-Twenties to her late Fifties. This is even more remarkable when one considers that Miss Stanwyck never had plastic surgery and lived most of her life at a time before collegen and Botox. I suspect that her youthful looks were largely a result of good genetics and good care. It was either that or Barbara Stanwyck had discovered the Fountain of Youth. All actresses age, but none seem to have done so as slowly as Miss Barbara Stanwyck.