CW
Charles Welch — 1940 US Census Record
Model Tree available1940 United States Federal Census · San-Francisco-County, California
Our Model Tree links this Charles Welch across the 1920, 1930 and 1940 US Censuses in San-Francisco-County, California (XGBoost, ~Confirmed), with identified parents Margaret — first a head (b.~1888), then head of a 3-person household.
Age 52
b. ~1888
Male
Head
Born: California
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | San-Francisco-County, California |
| Surname | Welch |
| Given Name | Charles W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | California |
| 1935 Residence (City) | San Francisco City |
| 1935 Residence (County) | San Francisco |
| Additional Details | |
| Occupation | Plumbing-Contr. |
| Industry | Plumbing |
| Class of Worker | PW |
| Hours Worked | 50 |
| Income (1939) | 2300 |
| Highest Grade | C 2 |
| 1935 Residence | Same Place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Plumbing-Contr. |
| Township / Ward | San Francisco City |
| Est. Birth Year | ~1888 |
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 Charles | Age | Birth yr |
|---|---|---|---|---|
| Charles Welch | Head | — | 52 | ~1888 |
| Helen Welch | Spouse | — | 45 | ~1895 |
| Margaret Ballod | Daughter | — | 27 | ~1913 |
Census Appearances
1920
San Francisco, …
Son, age 31
San Francisco, California · implied b. ~1889 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Welch |
| Given Name | Charles H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Occupation | Plumber |
| Industry | General |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
San Francisco, …
Son, age 42
San Francisco, California · implied b. ~1888 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Welch |
| Given Name | Charles W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Occupation | pressman |
| Industry | own shop |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
San-Francisco-County, California
Head, age 52
San-Francisco-County, California · implied b. ~1888 — 3 household members
| Surname | Welch |
| Given Name | Charles W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | California |
| 1935 Residence (City) | San Francisco City |
| 1935 Residence (County) | San Francisco |
| Occupation | Plumbing-Contr. |
| Industry | Plumbing |
| Class of Worker | PW |
| Hours Worked | 50 |
| Income (1939) | 2300 |
| Highest Grade | C 2 |
| 1935 Residence | Same Place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
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 Charles Welch across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Margaret Welch (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Margaret Welch
b. ~1858
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Charles Welch
Head · 1940 · age 52 · b. ~1888 · California
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — San-Francisco-County, California
Open full size
1940 US Federal Census — San-Francisco-County, California
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00316-00087)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Neil Whitwood | 5 | Son | — | California |
| 42 | Barbara Tallman | 25 | Step-daughter | — | California |
| 43 | Harriet Kirk | 54 | Head | Bundle Insp. | Indiana |
| 44 | Per J. Carlsedt | 59 | Head | Painter | Sweden |
| 45 | George Brosan | 44 | Head | Electrician | California |
| 46 | Jennie Weisel | 74 | Head | — | Oregon |
| 47 | Alexander Wilson | 70 | Head | Clerk | Scotland |
| 48 | Nell Wilson | 65 | Wife | Seamstress | Ohio |
| 49 | John Casey | 41 | Head | Flagman | Ireland |
| 50 | Julia Casey | 38 | Wife | — | Ireland |
| 51 | Stanley Clark | 21 | Head | Shipping Clerk | Oregon |
| 52 | Jack King | 27 | Partner | Teacher | Missouri |
| 53 | Mary Marquis | 67 | Head | — | France |
| 54 | Edward Hanley | 40 | Head | Laborer | Ireland |
| 55 | Julia Hanley | 38 | Wife | Maid | Ireland |
| 56 | Mary Hanley | 8 | Daughter | — | New York |
| 57 | Charles Jones | 63 | Head | Towerman | Illinois |
| 58 | Clara Jones | 45 | Wife | Waitress | Minnesota |
| 59 | Donald Lodence | 15 | Step-son | — | California |
| 60 | Harold Lodence | 13 | Step-son | — | California |
| 61 | Charles W. Welch THIS PERSON | 52 | Head | Plumbing-Contr. | California |
| 62 | Helen Welch | 45 | Wife | — | California |
| 63 | Margaret Ballod | 27 | Daughter | Clerk | California |
| 64 | — | 38 | — | — | Canada-Eng |
| 65 | — | 21 | — | Janitor | California |
| 66 | Fred W. Westphal | 52 | Head | Teamster | California |
| 67 | Edna Westphal | 51 | Wife | Saleswoman | California |
| 68 | Sanford W. Westphal | 24 | Son | Stock Man | California |
| 69 | Florence Bird | 52 | Head | Clerk | California |
| 70 | Harry Dahlberg | 33 | Head | Carpenter | Sweden |
| 71 | Maybelle Dahlberg | 27 | Wife | — | California |
| 72 | Janet Dahlberg | 4 | Daughter | — | California |
| 73 | Francis Kolman | 72 | Head | — | California |
| 74 | Henry Lee | 33 | Head | Baker | Texas |
| 75 | Catherine Lee | 31 | Wife | — | Pennsylvania |
| 76 | Ella Cosby | 12 | Step-daughter | — | California |
| 77 | Mary Ann Lee | 0 | Daughter | — | California |
| 78 | Victor R. Hall | 26 | Head | Sheet Metal | Missouri |
| 79 | Sadie Hall | 26 | Wife | Manager | Illinois |
| 80 | Cornelius Connell | 37 | Head | Pharmacist | California |
Pedigree Summary
Charles
Gen 1 · 1 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)