JH
John Herbert — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Baltimore-County, Maryland
Our Model Tree links this John Herbert across the 1930 and 1940 US Censuses in Baltimore-County, Maryland (XGBoost, ~Confirmed) — first a son (b.~1926), then head of a 12-person household.
Age 14
b. ~1926
Male
Son
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-County, Maryland |
| Surname | Herbert |
| Given Name | John M. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Election District 7 |
| 1935 Residence (County) | Baltimore |
| Additional Details | |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Election District 7 |
| Est. Birth Year | ~1926 |
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.
12 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Herbert | Son | — | 14 | ~1926 |
| Charles Herbert | Son | — | 15 | ~1925 |
| Samuel Herbert | Son | — | 12 | ~1928 |
| Roberta Herbert | Spouse | — | 35 | ~1905 |
| John Herbert | Head | — | 43 | ~1897 |
| Mary Herbert | Daughter | — | 2 | ~1938 |
| William Herbert | Son | — | 6 | ~1934 |
| Sarah Herbert | Daughter | — | 17 | ~1923 |
| Nancy Herbert | Daughter | — | 4 | ~1936 |
| Charles Uebel | Other | — | 42 | ~1898 |
| Roberta Herbert | Daughter | — | 8 | ~1932 |
| James Herbert | Son | — | 10 | ~1930 |
Census Appearances
1930
Baltimore, Maryland
Son, age 3
Baltimore, Maryland · implied b. ~1927 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Herbert |
| Given Name | John M. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read/Write | No |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-County, Maryland
Son, age 14
Baltimore-County, Maryland · implied b. ~1926 — 12 household members
| Surname | Herbert |
| Given Name | John M. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Election District 7 |
| 1935 Residence (County) | Baltimore |
| Highest Grade | No 5 |
| 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 John Herbert across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Herbert
Son · 1940 · age 14 · b. ~1926 · Maryland
★ You are viewing this record
Sibling
Mary Herbert
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Herbert
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Nancy Herbert
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sarah Herbert
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Roberta Herbert
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Herbert
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Samuel Herbert
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Herbert
Sibling · 1940 · age 10
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-County, Maryland
Open full size
1940 US Federal Census — Baltimore-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01504-00346)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John W. Herbert | 43 | head | Operator | Maryland |
| 2 | Roberta A. Herbert | 35 | wife | — | Maryland |
| 3 | Sarah L. Herbert | 17 | daughter | — | Maryland |
| 4 | Charles Jr. Herbert | 15 | son | — | Maryland |
| 5 | John M. Herbert THIS PERSON | 14 | son | — | Maryland |
| 6 | Samuel W. Herbert | 12 | son | — | Maryland |
| 7 | James F. Herbert | 10 | son | — | Maryland |
| 8 | Roberta L. Herbert | 8 | daughter | — | Maryland |
| 9 | William L. Herbert | 6 | son | — | Maryland |
| 10 | Nancy L. Herbert | 4 | daughter | — | Maryland |
| 11 | Mary L. Herbert | 2 | daughter | — | Maryland |
| 12 | Charles G. Uebel | 42 | lodger | — | Maryland |
| 13 | Olia O. Day | 42 | head | — | Pennsylvania |
| 14 | Lida M. Day | 21 | daughter | Clerk | Maryland |
| 15 | Claude N. Day | 16 | son | New Worker | Maryland |
| 16 | Greta E. Day | 18 | daughter | — | Maryland |
| 17 | Helena Day | 15 | daughter | — | Maryland |
| 18 | Homer Wilson | 45 | lodger | Laborer | Virginia |
| 19 | Rebecca R. Williams | 57 | head | — | West Virginia |
| 20 | Luther M. Williams | 35 | son | Tree Surgeon | Maryland |
| 21 | Nellie E. Williams | 27 | daughter | Seamstress | Pennsylvania |
| 22 | Harry A. Ward | 27 | son-in-law | Foreman | Maryland |
| 23 | Gladys V. Ward | 26 | daughter | — | Maryland |
| 24 | Harry A. Jr. Ward | 8 | grandson | — | Maryland |
| 25 | James E. Ward | 7 | grandson | — | Pennsylvania |
| 26 | William R. Ward | 5 | grandson | — | Maryland |
| 27 | Ambrose O. Keller | 45 | head | Operator | Maryland |
| 28 | Emma A. Keller | 40 | wife | — | Pennsylvania |
| 29 | Frances R. Keller | 4 | daughter | — | Pennsylvania |
| 30 | Jean Keller | 3 | daughter | — | Pennsylvania |
| 31 | Roy J. Keller | 1 | son | — | Pennsylvania |
| 32 | Emma F. Henry | 73 | mother-in-law | — | Pennsylvania |
| 33 | Blair E. Wineholt | 18 | hired hand | Laborer | Maryland |
| 34 | John E. Drury | 57 | head | Operator | Pennsylvania |
| 35 | Sarah J. Drury | 55 | wife | — | Pennsylvania |
| 36 | Willard D. Urmeniller | 38 | head | Laborer | Maryland |
| 37 | Alberta N. Urmeniller | 34 | wife | — | Pennsylvania |
| 38 | Charles E. Urmeniller | 13 | son | — | Pennsylvania |
| 39 | Donald E. Urmeniller | 10 | son | — | Pennsylvania |
| 40 | Hazel M. Urmeniller | 3 | daughter | — | Pennsylvania |
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)