WM
William Mann — 1940 US Census Record
Model Tree available1940 United States Federal Census · Carroll-County, Maryland
Our Model Tree links this William Mann across the 1920, 1930 and 1940 US Censuses in Carroll-County, Maryland (XGBoost, ~Confirmed), with identified parents Harry & Harry — first a son (b.~1918), then head of a 7-person household.
Age 22
b. ~1918
Male
Son
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Carroll-County, Maryland |
| Surname | Mann |
| Given Name | William F. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Election District 4 Woolery |
| 1935 Residence (County) | Carroll |
| Additional Details | |
| Occupation | Clerk |
| Industry | Retail grocery |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 500 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Clerk |
| Township / Ward | Election District 4 Woolery |
| 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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Harry Mann | Head | — | 48 | ~1892 |
| William Mann | Son | — | 22 | ~1918 |
| Margie Mann | Daughter | — | 20 | ~1920 |
| Harry Mann | Son | — | 24 | ~1916 |
| Charles Mann | Son | — | 18 | ~1922 |
| Clayton Mann | Son | — | 14 | ~1926 |
| Agnes Mann | Spouse | — | 46 | ~1894 |
Census Appearances
1920
Carroll, Maryland
Son, age 2
Carroll, Maryland · implied b. ~1918 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mann |
| Given Name | William F |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Carroll, Maryland
Son, age 12
Carroll, Maryland · implied b. ~1918 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mann |
| Given Name | William F. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| 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
Carroll-County, Maryland
Son, age 22
Carroll-County, Maryland · implied b. ~1918 — 7 household members
| Surname | Mann |
| Given Name | William F. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Election District 4 Woolery |
| 1935 Residence (County) | Carroll |
| Occupation | Clerk |
| Industry | Retail grocery |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 500 |
| Highest Grade | H-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 Mann across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Harry Mann (~0.92 confidence) and father Harry Mann (~0.92 confidence) and father Harry Mann (~0.92 confidence) and mother Agnes Mann (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Harry Mann
b. ~1895
Source father
● Household
· direct · ~0.92
Father
Harry Mann
b. ~1872
Source father
● Household
· direct · ~0.92
Father
Harry Mann
b. ~1892
Source father
● Household
· direct · ~0.92
Mother
Agnes Mann
b. ~1894
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Mann
Son · 1940 · age 22 · b. ~1918 · Maryland
★ You are viewing this record
Sibling
Margie Mann
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Mann
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Clayton Mann
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harry Mann
Sibling · 1940 · age 24
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 — Carroll-County, Maryland
Open full size
1940 US Federal Census — Carroll-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01544-00204)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Julia F. Uhler | 23 | Wife | — | Maryland |
| 2 | Reuben F. Shipley | 78 | Head | — | Maryland |
| 3 | Raymond L. Roderick | 29 | Head | — | Maryland |
| 4 | Annie M. Roderick | 24 | Wife | — | Maryland |
| 5 | Lester G. Caple | 35 | Head | Farmer | Maryland |
| 6 | Ruth O. Caple | 32 | Wife | — | Maryland |
| 7 | Charles R. Caple | 6 | Son | — | Maryland |
| 8 | Harry L. Caple | 5 | Son | — | Maryland |
| 9 | Harvey C. Mann | 40 | Head | Electrician | Maryland |
| 10 | Elizabeth A. Mann | 33 | Wife | — | Maryland |
| 11 | Mary E. H. Mann | 13 | Daughter | — | Maryland |
| 12 | Margie H. Mann | 11 | Daughter | — | Maryland |
| 13 | Roland H. Mann | 10 | Son | — | Maryland |
| 14 | D. Marie Mann | 7 | Daughter | — | Maryland |
| 15 | Harry H. Mann | 48 | Head | Paper Inspector | Maryland |
| 16 | Agnes A. Mann | 46 | Wife | — | Maryland |
| 17 | Harry H. Jr. Mann | 24 | Son | Truck Driver | Maryland |
| 18 | William F. Mann THIS PERSON | 22 | Son | Clerk | Maryland |
| 19 | Margie V. Mann | 20 | Daughter | Clerk | Maryland |
| 20 | Charles A. Mann | 18 | Son | Helper | Maryland |
| 21 | Clayton E. Mann | 14 | Son | — | Maryland |
| 22 | Charles H. Uhler | 70 | Head | Farmer | Maryland |
| 23 | Susie Uhler | 60 | Wife | — | Maryland |
| 24 | Denton G. Uhler | 27 | Head | Farm Laborer | Maryland |
| 25 | Evelyn Uhler | 20 | Wife | — | Maryland |
| 26 | Irvin Bosley | 48 | Head | Farmer | Maryland |
| 27 | Alice Bosley | 42 | Wife | — | Maryland |
| 28 | Franklin Bosley | 24 | Son | Laborer | Maryland |
| 29 | Irvin Jr. Bosley | 21 | Son | Laborer | Maryland |
| 30 | Gladys Bosley | 10 | Daughter | — | Maryland |
| 31 | Joe Harris | 56 | Lodger | Laborer | Maryland |
| 32 | Ralph C. Bosley | 40 | Head | Attendant | Maryland |
| 33 | Augusta L. Bosley | 31 | Wife | — | Maryland |
| 34 | Rudolph E. Bosley | 13 | Son | — | Maryland |
| 35 | Joan M. Bosley | 11 | Daughter | — | Maryland |
| 36 | Judith M. Bosley | 8 | Daughter | — | Maryland |
| 37 | Charles R. Bosley | 7 | Son | — | Maryland |
| 38 | James M. Abbott | 64 | Head | Farmer | Maryland |
| 39 | Gurfalia M. Abbott | 60 | Wife | — | Maryland |
| 40 | Gilbert G. Abbott | 18 | Son | Helper | Maryland |
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 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)