[4] While she was a young wife and mother living in London in the 1950s, Dorothy Manning took over drawing and writing an existing comic strip, Bill and Sue, for the Daily Herald.

[2] Back in Michigan, Dorothy Henry was staff illustrator at the Port Huron Times Herald.

In 1975, she had a one-woman show of her works, including comic strips, commercial illustrations, sketches and paintings, at the Port Huron Museum.

Her first husband was Englishman Lawrence Sydney Rayson Manning; they married in 1951,[9] and had two children, Jessie and Robert.

Her second husband was electrical engineer Howard Patrick Henry Jr.[7] She died in 2020, aged 95 years.