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Gossip Leak

Haylie Duff

Author

Emma Martinez

Published May 15, 2026

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Duff in 2007, photo by Prphotos.com

Birth Name: Haylie Katherine Duff

Place of Birth: Houston, Harris, Texas, U.S.

Date of Birth: February 19, 1985

Ethnicity: German, English, Scottish, Scots-Irish/Northern Irish, Welsh, French, possibly 1/16th Polish

Haylie Duff is an American actress, singer, songwriter, television host, writer, and fashion designer. She is the daughter of Susan and Robert Duff, and the elder sister of actress and singer Hilary Duff. Haylie has two children with her fiancé Matt Rosenberg.

Haylie’s paternal grandfather was Kenneth Robert Duff (the son of Luke Ralph Duff and Willie Gertrude Roberts). Kenneth was born in Oklahoma. Luke was the son of Matthew A. Duff and Margaret A. Gillis.

Haylie’s paternal grandmother was Mary Pearl Erhard (the daughter of Earl/Earle Chester Erhard and Ann/Annie Pearl Windrow). Mary was born in Texas. Earl was the son of Chester Charles Erhard and Mary Eliza Trigg. Pearl was the daughter of William Henry Windrow and Anna H. McCord.

Haylie’s maternal grandfather was Samuel Clark “Sam” Cobb, Jr. (the son of Samuel/Sam Clark Cobb, Sr. and Eva/Era Hamil Whitaker). Haylie’s grandfather Samuel was born in Cameron, Texas. Haylie’s great-grandfather Samuel was the son of Clark/Charles Griffin Cobb and Mary Cornelia P. Smith.

Haylie’s maternal grandmother was Amy Beulah Schlemmer (the daughter of Albert Lee Schlemmer and Eula Belle Angell). Amy was born in Cameron, Texas. Albert’s parents, Ernst/Earnest Schlemmer and Anna/Anne/Annie Westowska, were German, with his father from Rhine and his mother from Posen; Anna may have been of Polish descent, though her language is listed as German. Eula was the daughter of Charles Frank Angell and Rosie Beulah Rogers.

Sources: Genealogy of Haylie Duff –

Genealogy of Haylie Duff (through her sister, Hilary Duff) –

Genealogy of Haylie’s paternal grandfather, Kenneth Robert Duff (focusing on his father’s side) –

Haylie’s paternal grandfather, Kenneth Robert Duff, on the 1930 U.S. Census –

Genealogy of Haylie’s paternal great-grandmother, Ann/Annie Pearl Windrow –

Haylie’s maternal grandmother, Amy Beulah Schlemmer, on the 1930 U.S. Census –

Haylie’s maternal great-grandfather, Albert Lee Schlemmer, on the 1920 U.S. Census –

Death record of Haylie’s maternal great-great-grandmother, Anna/Anne/Annie (Westowska) Schlemmer –