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Marvel Database
For fictional versions of Jo Duffy as a character within comic books or other media,
visit this disambiguation page.

Work History


Mary Jo Duffy (Earth-616) from Iron Man Vol 1 103 0001

"To Jo Duffy with love"

In Iron Man #103 (1977), a character named Jo Duffy appears. She shares her name with real-life Mary Jo Duffy, who became a writer and editor for Marvel starting in 1977 on the editorial staff.[2]

See Also

Links and References


  1. CBG Xtra, Comic Industry Birthdays
  2. Marvel Graphic Novel #40 back cover bio