When people search for Sarah King Weld, they are usually trying to understand the family background of a well-known actress. The answer is straightforward: Sarah King Weld is the older sister of Tuesday Weld, the American actress born Susan Ker Weld.
Sarah herself is a private individual. She does not have a public career, media coverage, or biographical entries in mainstream entertainment sources. What we know about her comes from genealogical records — and this article covers exactly that, along with the broader Weld family history and her famous sister’s public career.
Who Sarah King Weld Is
According to genealogy databases, Sarah King Weld was born on 27 May 1935 in Boston, Suffolk County, Massachusetts. She is listed as the daughter of Lothrop Motley Weld and Yosene Balfour Ker.
Her name appears in sources like Our Family Tree and Nagel Family History, which compile records from vital documents, census data, and family submissions. She does not appear in celebrity profiles, news archives, or entertainment databases.
That distinction matters. Sarah is a private person whose connection to fame comes entirely through her younger sister. Beyond her birth details, parents, and siblings, no widely available public record documents her life, occupation, or personal history.
Her Parents and Siblings
Sarah’s parents were Lothrop Motley Weld and Yosene Balfour Ker. Together, they had three children:
- Sarah King Weld — born 27 May 1935, Boston, Massachusetts
- David Balfour Weld — born 1937
- Susan Ker Weld — born 27 August 1943, New York City
Susan Ker Weld is the actress the world knows as Tuesday Weld. That makes Sarah her older sister by eight years.
The family line is simple: Lothrop Motley Weld and Yosene Balfour Ker had three children together, with Sarah being the eldest and Susan — later Tuesday — the youngest. David Balfour Weld falls in between, born around 1937.
None of the available genealogy sources provide additional detail about Lothrop Motley Weld’s profession or Yosene Balfour Ker’s background beyond their names and their role as parents in this family line.
Tuesday Weld — The Famous Name in the Family
Tuesday Weld was born Susan Ker Weld on 27 August 1943 in New York City. She became one of the more recognizable American actresses of her generation, building a career that stretched from the late 1950s through several decades of film and television work.
She is perhaps best known to early audiences for her role in the television series “The Many Loves of Dobie Gillis,” where she played the memorably shallow Thalia Menninger. That role made her a familiar face in American households during the late 1950s and early 1960s.
From there, Tuesday Weld took on more dramatic film roles, earning a reputation as a serious actress with range. She was nominated for a Golden Globe and received critical attention for her performances in films across the 1960s and 1970s. Her public persona was unconventional, and she became known as someone who turned down major roles — including the lead in Lolita and Bonnie and Clyde.
She adopted the stage name Tuesday Weld early in her career. The origin of the nickname “Tuesday” has been attributed to a childhood mispronunciation of her last name, though she kept the Weld surname, which tied her directly back to the family that includes her older sister Sarah.
Tuesday Weld’s career is well documented through film and television records. Her sister Sarah’s life, by contrast, sits quietly in genealogy databases with no equivalent public record to draw from.
The Weld Family’s New England Roots
The Weld name has deep roots in Massachusetts. Historical records document the family’s presence in the region going back to colonial times, with early generations settling and establishing themselves in the Boston area.
The Jamaica Plain Historical Society has covered the first several generations of the Weld family in America, noting their long presence and influence in the region. The family name appears across multiple branches and time periods, which is part of why it shows up in both historical research and celebrity genealogy searches.
One historically significant branch of the broader Weld family includes Theodore Weld, the 19th-century abolitionist, and his connections to the Grimké sisters — prominent anti-slavery activists. The University of Michigan holds archival papers from this Weld-Grimké family line, covering documents from 1740 to 1930.
It is worth being clear here: this abolitionist branch is a distinct part of the wider Weld family tree. It is not the same immediate line as Sarah and Tuesday Weld’s family. But it does illustrate how extensive the Weld name is across American history and why researchers encounter it in so many different contexts.
The Weld family, in various branches, represents a long-standing New England lineage — the kind that appears in historical society records, university archives, and genealogy databases all at once.
Two “Sarah” Names in the Same Family Tree
One specific source of confusion worth addressing: people searching for Sarah King Weld sometimes also come across a woman named Sarah Lothrop King. These are two different people from two different generations.
Sarah Lothrop King, born around 1874, appears in genealogy charts as an ancestor — a grandmother figure in Tuesday Weld’s family tree. The FamousKin chart connecting her to Tuesday Weld shows how the King surname entered the Weld family line through earlier generations.
Sarah King Weld, born in 1935, is Tuesday Weld’s older sister — a sibling, not an ancestor.
Both names contain “Sarah” and “King,” which is exactly why they get tangled together in searches. The key is to check birth years and generational placement. A person born in 1874 and a person born in 1935 cannot be the same individual, even if their names overlap in a shared family tree.
This kind of confusion is common in genealogical research. Family names repeat across generations, and surnames from earlier generations sometimes reappear as middle or first names for later descendants. Paying attention to birth dates and the relationship labels in the records — sibling versus grandparent, for example — is the clearest way to tell them apart.
For readers who come across both names in the same search, the short answer is this: Sarah Lothrop King belongs to an earlier generation of the family, while Sarah King Weld belongs to Tuesday Weld’s immediate family as her older sister.
Why People Search for Sarah King Weld
Most people who look up Sarah King Weld are not looking for information about Sarah herself. They are tracing Tuesday Weld’s family history and want to understand who her relatives were.
This is a common pattern in celebrity genealogy searches. A fan or researcher starts with a famous name, follows the family tree, and lands on a sibling or relative who has no public profile of their own. The search is really about context — understanding where the famous person came from and who made up their immediate family.
In Sarah’s case, the confirmed answer is clear: she was Tuesday Weld’s older sister, born eight years before her in Boston, to the same parents. That family connection is the beginning and end of what genealogical records publicly confirm about her.
For anyone doing deeper research into celebrity family trees, resources like Daily Business Notes cover a range of profile and background topics that can help put public figures and their family histories into useful context.
A Note on Genealogy Sources
The details in this article come from genealogy databases, specifically Our Family Tree and Nagel Family History. These sources compile information from vital records, census documents, and submissions from individuals tracing their own family histories.
They are useful for establishing basic facts like birth dates, birthplaces, and family relationships. But they can also contain gaps or errors, especially when information comes from user-submitted data rather than official documentation. Where possible, cross-referencing more than one source helps confirm accuracy.
For Sarah King Weld, the core facts — birth date, birthplace, parents, and siblings — appear consistently across multiple genealogy sources. That consistency gives reasonable confidence in the basic record, even if deeper personal details remain undocumented.
Conclusion
Sarah King Weld is not a public figure. She is the older sister of Tuesday Weld, one of Hollywood’s more distinctive actresses of the mid-20th century. Sarah was born in 1935 in Boston, the eldest child of Lothrop Motley Weld and Yosene Balfour Ker, followed by brother David and then Susan — the girl who became Tuesday Weld.
The Weld family carries a long history in New England, with branches that touched American colonial life, abolitionist movements, and eventually Hollywood. Sarah’s place in that history is quiet and private, but the family context she belongs to is genuinely rich.
For anyone who found this article while trying to piece together Tuesday Weld’s background, that’s exactly what these records are here for — to fill in the family picture around a famous name, responsibly and accurately.
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