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William Schroeder — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cecil-County, Maryland
Our Model Tree links this William Schroeder across the 1930 and 1940 US Censuses in Cecil-County, Maryland (XGBoost, ~Confirmed) — first a son (b.~1922), then head of a 10-person household.
Age 18
b. ~1922
Male
Son
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cecil-County, Maryland |
| Surname | Schroeder |
| Given Name | William H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Seventh District |
| 1935 Residence (County) | Cecil |
| Additional Details | |
| Industry | 0 |
| Hours Worked | 30 |
| Highest Grade | No 1 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Seventh District |
| Est. Birth Year | ~1922 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Emma Schroeder | Daughter | — | 11 | ~1929 |
| Edna Schroeder | Daughter | — | 22 | ~1918 |
| Anna Schroeder | Daughter | — | 20 | ~1920 |
| Wm Schroeder | Head | — | 58 | ~1882 |
| Joseph Schroeder | Son | — | 26 | ~1914 |
| Walter Schroeder | Son | — | 17 | ~1923 |
| William Schroeder | Son | — | 18 | ~1922 |
| Herbert Schroeder | Son | — | 10 | ~1930 |
| Percy Schroeder | Son | — | 16 | ~1924 |
| Emma Schroeder | Spouse | — | 52 | ~1888 |
Census Appearances
1930
Cecil, Maryland
Son, age 8
Cecil, Maryland · implied b. ~1922 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Schroeder |
| Given Name | William H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Cecil-County, Maryland
Son, age 18
Cecil-County, Maryland · implied b. ~1922 — 10 household members
| Surname | Schroeder |
| Given Name | William H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Seventh District |
| 1935 Residence (County) | Cecil |
| Industry | 0 |
| Hours Worked | 30 |
| Highest Grade | No 1 |
| 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 Schroeder across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Schroeder
Son · 1940 · age 18 · b. ~1922 · Maryland
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Sibling
Joseph Schroeder
Sibling · 1940 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edna Schroeder
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Herbert Schroeder
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Percy Schroeder
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Emma Schroeder
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Schroeder
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Walter Schroeder
Sibling · 1940 · age 17
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 — Cecil-County, Maryland
Open full size
1940 US Federal Census — Cecil-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01545-00604)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Wm H Schroeder | 58 | Head | — | Mass |
| 42 | Emma Schroeder | 52 | Wife | — | Maryland |
| 43 | Joseph Schroeder | 26 | Son | Chef | Maryland |
| 44 | Edna Schroeder | 22 | Daughter | Domestic | Maryland |
| 45 | Anna Schroeder | 20 | Daughter | — | Maryland |
| 46 | William H Schroeder THIS PERSON | 18 | Son | — | Maryland |
| 47 | Walter Schroeder | 17 | Son | Presser | Maryland |
| 48 | Percy Schroeder | 16 | Son | — | Maryland |
| 49 | Emma Schroeder | 11 | Daughter | — | Maryland |
| 50 | Herbert Schroeder | 10 | Son | — | Maryland |
| 51 | William Kersey | 64 | Head | 730 | Pennsylvania |
| 52 | Alice Kersey | 55 | Wife | — | Maryland |
| 53 | Catherine Ryan | 29 | Daughter | — | Maryland |
| 54 | Roscoe Ryan | 25 | Son-in-law | — | Maryland |
| 55 | Lee Willard | 33 | Head | Truck Driver | Maryland |
| 56 | Bernice Willard | 31 | Wife | — | Maryland |
| 57 | William J Willard | 12 | Son | — | Maryland |
| 58 | Willard B Willard | 5 | Son | — | Maryland |
| 59 | Stuart W Smith | 70 | Head | 720 | Maryland |
| 60 | Gladys T Smith | 38 | Daughter-in-law | — | Maryland |
| 61 | Charles H Smith | 33 | Son | Assembler | Maryland |
| 62 | Albert C Smith | 15 | Grandson | — | Maryland |
| 63 | Stewart T C Smith | 11 | Grandson | — | Maryland |
| 64 | Agnes Mcmullen | 53 | Head | — | Maryland |
| 65 | Lewis Mcmullen | 31 | Son | Watchman | Maryland |
| 66 | Edward F Mcmullen | 28 | Son | Boat Operator | Maryland |
| 67 | Beatrice Mcmullen | 18 | Daughter | — | Maryland |
| 68 | Joseph W Summers | 22 | Son-in-law | Carpenter | Maryland |
| 69 | Margaret Summers | 22 | Daughter | — | Maryland |
| 70 | Joseph W Summers | 1 | Grandson | — | Maryland |
| 71 | Leslie G Owens | 49 | Head | Foreman | Maryland |
| 72 | Annie M Owens | 48 | Wife | — | Maryland |
| 73 | Leslie G Owens | 18 | Son | — | Maryland |
| 74 | Samuel C Thompson | 36 | Head | Laborer | Maryland |
| 75 | Ruth Thompson | 34 | Wife | — | Maryland |
| 76 | Audrey Thompson | 14 | Daughter | — | Maryland |
| 77 | Carolyne Thompson | 12 | Daughter | — | Maryland |
| 78 | Cecil Thompson | 10 | Son | — | Maryland |
| 79 | Mary Thompson | 8 | Daughter | — | Maryland |
| 80 | Esther Thompson | 7 | Daughter | — | Maryland |
Related Census Records
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)