WC
William Carr — 1930 US Census Record
Model Tree available1930 United States Federal Census · Plymouth, Massachusetts
Our Model Tree links this William Carr across the 1910, 1920 and 1930 US Censuses in Plymouth, Massachusetts (XGBoost, ~Confirmed), with identified parents James & Patrick — first a son (b.~1910), then head of a 7-person household.
Age 20
b. ~1910
Male
Son
Born: Massachusetts
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Plymouth, Massachusetts |
| Surname | Carr |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Irish Free State |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Hingham Village |
| Est. Birth Year | ~1910 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
7 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Mary Carr | Daughter | — | 18 | ~1912 |
| Patrick Carr | Head | — | 63 | ~1867 |
| Ellen Carr | Other | — | 51 | ~1879 |
| Charles Carr | Son | — | 15 | ~1915 |
| Walter Carr | Son | — | 27 | ~1903 |
| Harold Carr | Son | — | 22 | ~1908 |
| William Carr | Son | — | 20 | ~1910 |
Census Appearances
1910
Plymouth, Massachusetts
Son, age
Plymouth, Massachusetts · implied b. ~1910 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carr |
| Given Name | William G. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Ireland |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1920
Plymouth, Massachusetts
Son, age 10
Plymouth, Massachusetts · implied b. ~1910 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carr |
| Given Name | William M |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Plymouth, Massachusetts
Son, age 20
Plymouth, Massachusetts · implied b. ~1910 — 7 household members
| Surname | Carr |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Irish Free State |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links William Carr across 3 US Census years (1910, 1920 and 1930) in Plymouth, Massachusetts, using XGBoost record linkage. Identified parents: father James Carr (~0.92 confidence) and father Patrick Carr (~0.92 confidence) and mother Ellen Carr (~0.92 confidence) and mother Nellie Carr (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Carr
b. ~1865
Source father
● Household
· direct · ~0.92
Father
Patrick Carr
b. ~1867
Source father
● Household
· direct · ~0.92
Mother
Ellen Carr
b. ~1876
Source mother
● Household
· direct · ~0.92
Mother
Nellie Carr
b. ~1879
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Carr
Son · 1930 · age 20 · b. ~1910 · Massachusetts
★ You are viewing this record
Sibling
Walter Carr
Sibling · 1930 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Carr
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Carr
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harold Carr
Sibling · 1930 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Plymouth, Massachusetts
Open full size
1930 US Federal Census — Plymouth, Massachusetts
Page Contents
50 people indexed on this census page (ia:1930:massachusettscensus00reel940:0188)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Margaret M. Lucas | 2 | Daughter | — | Massachusetts |
| 2 | John B. Lucas | 1 | Son | — | Massachusetts |
| 3 | Nelson F. Green | 75 | Head | Lawyer | New York |
| 4 | Lucretia Green | 52 | Wife-H | — | New Hampshire |
| 5 | Betsey Green | 20 | Daughter | — | Rhode Island |
| 6 | Lucretia Green | 16 | Daughter | — | Massachusetts |
| 7 | Catherine Keane | 46 | Head | Maid | Massachusetts |
| 8 | Ruth Keane | 42 | Sister | Nurse | Massachusetts |
| 9 | Bernice Keane | 30 | Sister | Operator | Massachusetts |
| 10 | Myrie Keane | 23 | Sister | Clerk | Massachusetts |
| 11 | Almer C. Ladd | 63 | Head | Agent | Massachusetts |
| 12 | May F. Ladd | 64 | Wife-H | — | Maine |
| 13 | Herbert E. Ladd | 22 | Son | — | Massachusetts |
| 14 | Gertrude Labree | 18 | Boarder | — | Massachusetts |
| 15 | Thomas Hunter | 61 | Head | Track Walker | Ireland |
| 16 | Anna C. Hunter | 21 | Daughter-H | — | Massachusetts |
| 17 | John R. Hunter | 26 | Son | Presser | Massachusetts |
| 18 | Catherine Hunter | 23 | Daughter | House Work | Massachusetts |
| 19 | Ellen Noonan | 59 | Head-H | — | Massachusetts |
| 20 | Katherine Noonan | 57 | Sister | Stenographer | Massachusetts |
| 21 | Timothy Noonan | 66 | Brother | Watchman | Massachusetts |
| 22 | Patrick Carr | 63 | Head | Baker | Massachusetts |
| 23 | Ellen Carr | 51 | Wife-H | — | Irish Free State |
| 24 | Walter Carr | 27 | Son | Broker | Massachusetts |
| 25 | Harold Carr | 22 | Son | Bookkeeper | Massachusetts |
| 26 | William Carr THIS PERSON | 20 | Son | — | Massachusetts |
| 27 | Mary Carr | 18 | Daughter | Teller | Massachusetts |
| 28 | Charles Carr | 15 | Son | — | Massachusetts |
| 29 | Ralph Nese | 39 | Head | Proprietor | Italy |
| 30 | Annette Nese | 34 | Wife-H | — | Italy |
| 31 | Mary Nese | 7 | Daughter | — | Massachusetts |
| 32 | John Carnes | 49 | Head | Agent | Massachusetts |
| 33 | Mary A. Carnes | 43 | Wife-H | — | Massachusetts |
| 34 | John F. Carnes | 19 | Son | — | Massachusetts |
| 35 | E. Vincent Carnes | 17 | Son | — | Massachusetts |
| 36 | Mary A. Carnes | 13 | Daughter | — | Massachusetts |
| 37 | Russell W. Carnes | 12 | Son | — | Massachusetts |
| 38 | Richard F. Carnes | 10 | Son | — | Massachusetts |
| 39 | Walter Carnes | 5 | Son | — | Massachusetts |
| 40 | Patrick Lennon | 27 | Head | Chauffeur | Massachusetts |
| 41 | Ellen Lennon | 27 | Wife-H | — | Ireland |
| 42 | Margaret Lennon | 4 | Daughter | — | Massachusetts |
| 43 | William Lennon | 3 | Son | — | Massachusetts |
| 44 | James Lennon | 1 | Son | — | Massachusetts |
| 45 | Ellen Lennon | 0 | Daughter | — | Massachusetts |
| 46 | Adelbert Brunshon | 32 | Head | Painter | Massachusetts |
| 47 | Mary Brunshon | 32 | Wife-H | — | Massachusetts |
| 48 | Isaac Brunshon | 7 | Daughter | — | Massachusetts |
| 49 | Helen Brunshon | 5 | Daughter | — | Massachusetts |
| 50 | Richard J. Mulcahey | 51 | Head | Dentist | Massachusetts |
Pedigree Summary
William + 4 siblings
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)