Rosenblum was born in Levittown, New York and grew up in Allison Park, Pennsylvania.

However, from 1999 to 2002 she wrote the "Gardening Mysteries" novel series under the name "Mary Freeman."

[3] In 2009 she won the Sidewise Award for Alternate History Short Form for her story, "Sacrifice."

Rosenblum was also an accomplished cheesemaker who taught the craft at selected workshops.

[5] Rosenblum died on March 11, 2018, when the single-engine plane she was piloting crashed near an airfield south of La Center, Washington.