Who is Susannah Coolidge? All about Jennifer Coolidge’s sister


Susannah Coolidge is the sister of an American actress Jennifer Coolidge. Her sister is best known for her supporting roles in the American Pie film series (1999-2012) and the Legally Blonde film series (2001-2003).

Besides her identity as a celebrity sibling, Susannah’s details are less known. So today we are going to explore Susannah Coolidge’s personal and professional life in detail.


Susannah Coolidge’s age, parents and early life

Susannah, the sister of Jennifer Coolidge, was born in June 1966 to her mother Gretchen Knauff and her father Paul Constant Coolidge, in the United States of America. As of 2023, she is 56 years old.

Her father Paul was the owner of two plastics factories and also a former marine who served as a deck officer in the Pacific Theater while her mother appears to be a housewife. Both her parents are no longer alive in the world.

She was raised by her late parents in Norwell, Massachusetts along with her siblings. As for education, she attended Tulane University in New Orleans, LA.

Besides, regarding ethnicity, she belongs to a mixed ethnic background as she has English, German and also distant Scottish and Irish ancestry. Furthermore, Susannah has American nationality.

Susannah family background

Talking about her family background, her paternal grandfather John Templeman Coolidge IV was from Boston. He was born to his parents John Templeman Coolidge III and Catherine Scollay Parkman. Likewise, Susannah’s paternal grandmother was Susannah Cunnigham, the daughter of Frederic Cunnigham and Hetty Sullivan Lawrence. She was born in Brookline, Massachusetts.

Likewise, her maternal grandfather was Paul August Knauff. He was born to German parents Henry Knauff and Frederika Marie Mulfinger in Wisconsin. Further, her maternal grandmother Mildred Ann Adkisson, a native of Illinois, was born to William Frank Adkisson and Margaret Ann Portlock.

Susannah Coolidge siblings

As mentioned earlier, Susannah is the sister of actress Jennifer Coolidge. Besides Jennifer, she has two other siblings called a sister Elizabeth Coolidge and a brother Andrew Coolidge.

As we all know, her sister Jennifer is a successful Hollywood actress. Unlike Jennifer, her two other siblings have incredibly quiet lives.

Susannah’s sister Jennifer is a well-known actress; Brief look at her career

Born August 28, 1961, in Norwell Massachusetts, Susannah’s sister Jennifer Coolidge was always destined to be an actress. She later joined the American Academy of Dramatic Arts and later moved to Los Angeles to pursue an acting career.

Susannah Coolidge Sister is a successful American actress
Susannah Coolidge’s sister Jennifer

Jennifer started her acting career as a supporting actress in various films and series. She made her TV debut through the sitcom Seinfeld created by Larry David And Jerry Seinfeld. After playing small roles in movies like A bucket of blood, Pump fictionAnd Night at the RoxburyCoolidge made her breakthrough in comedy film American pie in 1999, which gave her recognition as an actress.

In 2018, Coolidge became part of Ariana Grande’s music video for the song Thanks, Next.

One of Jennifer’s sisters was a shark victim; Was it Susannah Coolidge?

Once in an exclusive conversation with the American magazine, The White Lotus actress revealed that her sister was a shark victim. She said,

When I was 10, I made [a] remake of Jaws. My father swam with a fin on his back and my sister was the shark victim.

Since Jennifer didn’t reveal which of her sister’s shark victims was, chances are it’s Susannah or Elizabeth.

Susannah Coolidge works at the World Trade Center in New Orleans

According to her LinkedIn, Susannah works in the World Trade Center in New Orleans. She served in the position of Trade Programs Manager in the company.

Apart from this, there is no more information about Coolidge’s professional life.

Is Susannah Coolidge Married? Who is her husband?

The answer is yes! Coolidge is a married woman. She is married to her husband Fred Diegel and together they live in New Orleans. Since she is private regarding her personal matter, the information about her marriage date and children is not known. However, it is certain that they lived their married life gracefully.

In 2018, the couple appeared together on the Guided tour of holiday homes at camp site 1525. The source also reported that Susannah’s husband bought some furniture at auction to match the American aisle style of their home.

Susannah Coolidge’s Net Worth

Since Susannah has worked in a world trade center, the famous sibling must have made a decent amount of money. However, going through various media outlets, it seems that her net worth is yet to be estimated.

Meanwhile, her famous sister Jennifer Coolidge has an estimated fortune of $6 million.