Birth Name: Andrew Grammer
Place of Birth: Los Angeles, California, United States
Date of Birth: December 3, 1983
Ethnicity: German, English, Swedish, Irish, distant Dutch
Andy Grammer is an American singer, songwriter, musician, and record producer. He is the son of Kathryn Jean (Willoughby) and Red Grammer (Robert Crane Grammer), a musician.
Andy’s paternal grandfather was Allen Halstead Grammer (the son of Allen Luther Grammer and Malvina Augusta Halstead). Allen was the son of Allen Jefferson Grammer and Clara Frances Brinkerhoff. Malvina was the daughter of Charles D. Halstead and Fanny I.
Andy’s paternal grandmother was Katharine Jane Krom (the daughter of Charles Sahler Krom and Katharine Banks).
Andy’s maternal grandparents were David John Willoughby (the son of Ross Albert Willoughby and Helen Pauline Swanson). Ross was the son of David Willoughby and Ellen Hanrahan. Helen was born in Chicago, Illinois, to Swedish parents, John Swanson and Minnie Paulson.
Andy’s maternal grandmother was Florence L.
Sources: Genealogy of Andy Grammer (focusing on his father’s side)
Obituary of maternal grandfather, David John Willoughby
Andy’s maternal grandfather, David John Willoughby, on the 1930 U.S. Census
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