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William Sims — 1940 US Census Record
Model Tree available1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this William Sims across the 1920, 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed), with identified parents Dorothy & William — first a son (b.~1918), then head of a 3-person household.
Age 22
b. ~1918
Male
Son
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | Sims |
| Given Name | William E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | BALTIMORE CITY |
| 1935 Residence (County) | Baltimore City |
| Additional Details | |
| Occupation | Clerk |
| Industry | Railway Transit |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 750 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Clerk |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1918 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Helen Sims | Daughter | — | 13 | ~1927 |
| Lucy Sims | Head | — | 42 | ~1898 |
| William Sims | Son | — | 22 | ~1918 |
Census Appearances
1920
None, Maryland
Son, age 1
None, Maryland · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Simms |
| Given Name | William Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
Son, age 11
Baltimore, Maryland · implied b. ~1919 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Simms |
| Given Name | William Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Son, age 22
Baltimore-City-County, Maryland · implied b. ~1918 — 3 household members
| Surname | Sims |
| Given Name | William E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | BALTIMORE CITY |
| 1935 Residence (County) | Baltimore City |
| Occupation | Clerk |
| Industry | Railway Transit |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 750 |
| Highest Grade | Hs 4 |
| 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 Sims across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage. Identified parents: mother Dorothy Simms (~0.92 confidence) and father William Simms (~0.92 confidence) and mother Lucy Sims (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Dorothy Simms
b. ~1889
Source mother
● Household
· direct · ~0.92
Father
William Simms
b. ~1895
Source father
● Household
· direct · ~0.92
Mother
Lucy Sims
b. ~1898
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Sims
Son · 1940 · age 22 · b. ~1918 · Maryland
★ You are viewing this record
Sibling
Helen Sims
Sibling · 1940 · age 13
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 — Baltimore-City-County, Maryland
Open full size
1940 US Federal Census — Baltimore-City-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01512-00139)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Walters Linnie X Walters | 24 | Wife | Machine Operator | Maryland |
| 2 | Joseph Lapaclia | 39 | Head | Chauffeur | Italy |
| 3 | Lucy Lapaclia | 26 | Wife | — | Italy |
| 4 | Mario Quintiliani | 57 | Head | Presser | Italy |
| 5 | Matilda Quintiliani | 60 | Wife | — | Italy |
| 6 | John J Aull | 44 | Head | Arm Piece Sticker | Maryland |
| 7 | Elizabeth Aull | 45 | Wife | Clerk | Maryland |
| 8 | William J Edwards | 25 | Son-in-law | Machine Operator | Maryland |
| 9 | Lauretta F Edwards | 24 | Daughter | Clerk | Maryland |
| 10 | George Fahey | 53 | Head | Machine Operator | Maryland |
| 11 | Elizabeth Fahey | 51 | Wife | Patch Maker | Maryland |
| 12 | Harry E Crumwell | 49 | Head | — | Maryland |
| 13 | Pauline R Crumwell | 47 | Wife | Shipping Clerk | Maryland |
| 14 | Paul H Crumwell | 24 | Son | — | Maryland |
| 15 | Henry G Crumwell | 22 | Son | Electrician | Maryland |
| 16 | Alford Gronberg | 23 | Head | Salesman | Maryland |
| 17 | Mildred L Gronberg | 21 | Wife | Packer | Maryland |
| 18 | John Wagner | 32 | Head | — | Maryland |
| 19 | Margaretta Wagner | 24 | Wife | Salesman | Maryland |
| 20 | Celia R Hook | 49 | Head | — | Maryland |
| 21 | Fern Frederick Hook | 52 | Brother | Bench Hand | Maryland |
| 22 | Henry E Brandt | 47 | Brother | Foreman | Maryland |
| 23 | Margaret H Brandt | 45 | Sister-in-law | Machine Operator | Maryland |
| 24 | Samuel J Kudzna | 32 | Head | Car Inspector | Scotland |
| 25 | Lilian E Kudzna | 30 | Wife | — | Maryland |
| 26 | Gloria A Kudzna | 9 | Daughter | — | Maryland |
| 27 | Nancy E Kudzna | 3 | Daughter | — | Maryland |
| 28 | Esther M Paul | 28 | Head | — | Maryland |
| 29 | Shirley A Paul | 8 | Daughter | Machine Operator | Maryland |
| 30 | Lucy A Sims | 42 | Head | — | Maryland |
| 31 | William E Sims THIS PERSON | 22 | Son | Clerk | Maryland |
| 32 | Helen J Sims | 13 | Daughter | — | Maryland |
| 33 | Albert W Raiot | 31 | Head | Clerk | Maryland |
| 34 | Regina E Raiot | 25 | Wife | — | Maryland |
| 35 | Regina E Raiot | 3 | Daughter | — | Maryland |
| 36 | Henry J Williams | 43 | Head | Captain | North Carolina |
| 37 | Blanche E Williams | 44 | Wife | — | Maryland |
| 38 | George L Schreiner | 33 | Head | Foreman | Maryland |
| 39 | Annie E Schreiner | 46 | Wife | — | Maryland |
| 40 | Ruth M Schreiner | 13 | Daughter | — | Maryland |
Related Census Records
Pedigree Summary
William + 1 sibling
Gen 1 · 3 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)