Birth Name: Jennifer J./C. Coolidge
Place of Birth: Boston, Massachusetts, U.S.
Date of Birth: June 1, 1961
Ethnicity: English, German, more distant Scottish and Irish
Jennifer Coolidge is an American actress, comedian, and activist. She is known for playing Stifler’s mother in the American Pie films, among many other roles, including Best in Show, Legally Blonde, A Mighty Wind, A Cinderella Story, Date Movie, Click, Single All the Way, 2 Broke Girls, The Watcher, and The White Lotus.
Jennifer is the daughter of Gretchen and Paul Coolidge, a plastics manufacturer. She was raised in Norwell, Massachusetts.
Jennifer’s paternal grandfather was John Templeman Coolidge IV (the son of John Templeman Coolidge III and Catherine/Katherine Scollay Parkman). Jennifer’s grandfather John was born in Boston, Massachusetts. Jennifer’s great-grandfather John was the son of Joseph Swett Coolidge and Mary Louisa Coolidge. Catherine was the daughter of Francis Parkman and Catherine Scollay Bigelow.
Jennifer’s paternal grandmother was Susannah Cunningham (the daughter of Frederic Cunningham and Hetty Sullivan Lawrence). Susannah was born in Brookline, Massachusetts. Frederic was the son of Charles Cunningham and Roxalina Dabney, who was evidently born in France, to American parents. Hetty was the daughter of Amos Adams Lawrence and Sarah Elizabeth Appleton.
Jennifer’s maternal grandfather was Paul August Knauff (the son of Henry Knauff and Frederica/Frederika/Friederike Marie Maulfinger/Mulfinger). Paul was born in Wisconsin, to German parents. Henry was the son of John/Johannes J. Knauff and Elizabeth Schmidt. Frederica was the daughter of Georg Heinrich/Henry Mulfinger and Rosine Marie/Mary Herman/Hermann.
Jennifer’s maternal grandmother was Mildred Ann Adkisson (the daughter of William Frank Adkisson and Margaret Ann Portlock). Mildred was born in Illinois. William was the son of Joseph Newton Adkisson and Cassey/Cassie A. Harding. Margaret was the daughter of Samuel Vince Portlock and Nancy I. Frizell.
Sources: Obituary of Jennifer’s father – https://www.legacy.com
Genealogy of Jennifer’s maternal grandmother, Mildred Ann (Adkisson) Lawton – https://www.findagrave.com