WB
William Boyer — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this William Boyer across the 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed) — first a son (b.~1925), then head of a 7-person household.
Age 15
b. ~1925
Male
Son
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | Boyer |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Additional Details | |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1925 |
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 |
|---|---|---|---|---|
| Dolores Boyer | Daughter | — | 11 | ~1929 |
| Viola Boyer | Daughter | — | 16 | ~1924 |
| Madeleine Boyer | Daughter | — | 3 | ~1937 |
| William Boyer | Son | — | 15 | ~1925 |
| Melvin Boyer | Son | — | 11 | ~1929 |
| Robert Boyer | Son | — | 13 | ~1927 |
| Madeline Boyer | Head | — | 34 | ~1906 |
Census Appearances
1930
Baltimore, Maryland
Son, age 7
Baltimore, Maryland · implied b. ~1923 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Boyer |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 7 |
| 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 15
Baltimore-City-County, Maryland · implied b. ~1925 — 7 household members
| Surname | Boyer |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Highest Grade | 8 |
| 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 Boyer across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Boyer
Son · 1940 · age 15 · b. ~1925 · Maryland
★ You are viewing this record
Sibling
Dolores Boyer
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Viola Boyer
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Boyer
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Melvin Boyer
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Madeleine Boyer
Sibling · 1940 · age 3
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-t0627-01533-00412)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Norbert Jr. Kessler | 4 | Son | — | Maryland |
| 2 | Louise Kessler | 46 | Head | Machine Operator | Maryland |
| 3 | Mildred Kessler | 25 | Daughter | Wrapper | Maryland |
| 4 | Rachael Kessler | 19 | Daughter | Machine Operator | Maryland |
| 5 | John J. Wissmann | 23 | Son | Attendant | Maryland |
| 6 | Adele Wissmann | 21 | Daughter | — | Maryland |
| 7 | Audrey Lou Wissmann | 1 | Grand-Daughter | — | Maryland |
| 8 | Edith Rohoser | 62 | Head | Maid | Maryland |
| 9 | William L. Rohoser | 39 | Son | Waiter | Indiana |
| 10 | Charles E. Rohoser | 36 | Son | — | Maryland |
| 11 | Vincent A. Rohoser | 27 | Son | Bell-Hop | Maryland |
| 12 | Madeline K. Boyer | 34 | Head | — | Maryland |
| 13 | Viola Boyer | 16 | Daughter | — | Maryland |
| 14 | William Boyer THIS PERSON | 15 | Son | — | Maryland |
| 15 | Robert Boyer | 13 | Son | — | Maryland |
| 16 | Dolores Boyer | 11 | Daughter | — | Maryland |
| 17 | Melvin Boyer | 11 | Son | — | Maryland |
| 18 | Madeleine Boyer | 3 | Daughter | — | Maryland |
| 19 | Charles Falliher | 48 | Head | Painter | Georgia |
| 20 | Amelia Falliher | 37 | Wife | Packer | Maryland |
| 21 | Charles Jr. Falliher | 14 | Son | — | Maryland |
| 22 | George Sponheimer | 22 | Son-in-law | Butcher | Pennsylvania |
| 23 | Ruth K. Sponheimer | 20 | Daughter | — | Pennsylvania |
| 24 | Louis A. Schwertzel | 58 | Head | Clerk | Maryland |
| 25 | Henry B. Vogel | 72 | Head | Watchman | New York |
| 26 | Salome A. Vogel | 62 | Wife | Shirt Maker | Maryland |
| 27 | Herman Heffter | 31 | Head | Cluster Tapper | Maryland |
| 28 | Edna B. Heffter | 27 | Wife | — | Maryland |
| 29 | Joyce Heffter | 3 | Daughter | — | Maryland |
| 30 | Louis Spiegel | 43 | Head | Butcher | Maryland |
| 31 | Mary Spiegel | 50 | Wife | — | Maryland |
| 32 | Barbara Spiegel | 18 | Daughter | Pretzel Maker | Maryland |
| 33 | Calvin Spiegel | 16 | Son | New Worker | Maryland |
| 34 | Louis Spiegel | 11 | Son | — | Maryland |
| 35 | Mary Spiegel | 9 | Daughter | — | Maryland |
| 36 | Vernon Sanders | 26 | Head | Spindle Carver | Maryland |
| 37 | Margaret C. Sanders | 24 | Wife | — | Maryland |
| 38 | Vernon Jr. Sanders | 6 | Son | — | Maryland |
| 39 | Ruth Gries | 20 | Lodger | Sorter | Maryland |
| 40 | William S. High | 51 | Head | Machinist | Maryland |
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)