WC
William Carroll — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allegany-County, Maryland
Our Model Tree links this William Carroll across the 1920, 1930 and 1940 US Censuses in Allegany-County, Maryland (XGBoost, ~Confirmed), with identified parents Lula & Lula — first a son (b.~1915), then head of a 6-person household.
Age 25
b. ~1915
Male
Son
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegany-County, Maryland |
| Surname | Carroll |
| Given Name | William L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Cumberland |
| 1935 Residence (County) | Allegany |
| Additional Details | |
| Occupation | Tailvator |
| Industry | Artificiel Silk |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1300 |
| Highest Grade | 9 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Tailvator |
| Township / Ward | Cumberland |
| Est. Birth Year | ~1915 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Hazel Carroll | Daughter | — | 22 | ~1918 |
| Elizabeth Carroll | Daughter | — | 29 | ~1911 |
| Gretchen Carroll | Daughter | — | 19 | ~1921 |
| Albert Carroll | Head | — | 56 | ~1884 |
| William Carroll | Son | — | 25 | ~1915 |
| Lula Carroll | Spouse | — | 56 | ~1884 |
Census Appearances
1920
Allegany, Maryland
Son, age 6
Allegany, Maryland · implied b. ~1914 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carroll |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | West Virginia |
| Mother's Birthplace | West Virginia |
| Can Read | No |
| Can Write | No |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Allegany, Maryland
Son, age 16
Allegany, Maryland · implied b. ~1914 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carroll |
| Given Name | William L |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | West Virginia |
| Mother's Birthplace | West Virginia |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Allegany-County, Maryland
Son, age 25
Allegany-County, Maryland · implied b. ~1915 — 6 household members
| Surname | Carroll |
| Given Name | William L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Cumberland |
| 1935 Residence (County) | Allegany |
| Occupation | Tailvator |
| Industry | Artificiel Silk |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1300 |
| Highest Grade | 9 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
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 Carroll across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Lula Carroll (~0.92 confidence) and mother Lula Carroll (~0.92 confidence) and father Albert Carroll (~0.92 confidence) and mother Lula Carroll (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Lula Carroll
b. ~1883
Source mother
● Household
· direct · ~0.92
Mother
Lula Carroll
b. ~1884
Source mother
● Household
· direct · ~0.92
Father
Albert Carroll
b. ~1885
Source father
● Household
· direct · ~0.92
Mother
Lula Carroll
b. ~1890
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Carroll
Son · 1940 · age 25 · b. ~1915 · Maryland
★ You are viewing this record
Sibling
Gretchen Carroll
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Hazel Carroll
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elizabeth Carroll
Sibling · 1940 · age 29
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
1940 US Federal Census — Allegany-County, Maryland
Open full size
1940 US Federal Census — Allegany-County, Maryland
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01499-00263)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William F. Stevenson | 26 | Son | Clerk | Maryland |
| 2 | Raymond Stevenson | 9 | Son | — | Maryland |
| 3 | Derl A. Keller | 24 | Step son | Machinist | Maryland |
| 4 | Charles C. Bowman | 32 | Head | Truck Driver | West Virginia |
| 5 | Hazel D. Bowman | 31 | Wife | — | Pennsylvania |
| 6 | Robert L. Bowman | 4 | Son | — | Maryland |
| 7 | May E. White | 52 | Mother in law | — | Pennsylvania |
| 8 | Helen E. White | 30 | Sister in law | Jet Finisher | Pennsylvania |
| 9 | Edward P. Keener | 34 | Head | Pastor | Maryland |
| 10 | Viola E. Keener | 33 | Wife | — | Maryland |
| 11 | Ronald O. Keener | 2 | Son | — | Maryland |
| 12 | Chester C. Grim | 37 | Head | Agent | Ohio |
| 13 | Esther A. Grim | 32 | Wife | — | Ohio |
| 14 | Joann A. Grim | 10 | Daughter | — | Ohio |
| 15 | Elmer H. Devore | 52 | Lodger | Loco Engineer | Pennsylvania |
| 16 | George G. Mcbride | 34 | Head | Carman Helper | Pennsylvania |
| 17 | Ethel L. Mcbride | 26 | Wife | — | Maryland |
| 18 | Peter C. Reichert | 49 | Head | Clerk | Maryland |
| 19 | Jennie T. Reichert | 39 | Wife | — | Virginia |
| 20 | Harvey J. Heckler | 65 | Head | Watchman | Pennsylvania |
| 21 | Mary R. Heckler | 62 | Wife | — | Maryland |
| 22 | Mary F. Heckler | 21 | Daughter | — | Maryland |
| 23 | Nancy J. Heckler | 18 | Daughter | — | Maryland |
| 24 | Albert N. Carroll | 56 | Head | Painter | West Virginia |
| 25 | Lula M. Carroll | 56 | Wife | — | Maryland |
| 26 | Elizabeth V. Carroll | 29 | Daughter | Nurse | Maryland |
| 27 | Hazel M. Carroll | 22 | Daughter | Laboratory Assistant | Maryland |
| 28 | Gretchen L. Carroll | 19 | Daughter | Cashier | Maryland |
| 29 | William L. Carroll THIS PERSON | 25 | Son | Tailvator | Maryland |
| 30 | Robert J. Carroll | 30 | Head | Electrician | Maryland |
| 31 | Louisa D. Carroll | 29 | Wife | — | Maryland |
| 32 | Constance L. Carroll | 4 | Daughter | — | Maryland |
| 33 | Ernest B. Weisenmuller | 44 | Head | Truck Driver | Maryland |
| 34 | Anna M. Weisenmuller | 42 | Wife | — | Maryland |
| 35 | Charles E. Weisenmuller | 18 | Son | Movie Projector Assistant | Maryland |
| 36 | William C. Weisenmuller | 17 | Son | — | Maryland |
| 37 | Dorothy A. Weisenmuller | 11 | Daughter | — | Maryland |
| 38 | William F. Wheeler | 44 | Brother in law | Laborer | West Virginia |
| 39 | Ralph C. Robertson | 31 | Head | Mechanic | Maryland |
Related Census Records
Pedigree Summary
William + 3 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 1940 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)