Gendreau graduated from Bob Jones University, and was a sorority chaplain during her time there.
During her time on the Littleton Board of Selectmen, Gendreau would occasionally open meetings with a prayer, and she carried a Bible with her to debates in the New Hampshire Senate.
She told the New York Times, "I will listen to my constituents, but if the Lord trumps the majority, I will go with that."
After community protests, she did not seek reelection and was succeeded by Kerri Harrington.
[1] She attracted international attention after protesting a mural of a "white iris in front of a rainbow color wheel ...two birch trees in front of blue mountains and a white crescent moon ... [and] dandelions growing from the pages of a book".