JN
James Nicholson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Howard-County, Maryland
Our Model Tree links this James Nicholson across the 1930 and 1940 US Censuses in Howard-County, Maryland (XGBoost, ~Confirmed) — first a son (b.~1912), then head of a 7-person household.
Age 28
b. ~1912
Male
Son
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Howard-County, Maryland |
| Surname | Nicholson |
| Given Name | James H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Jessup |
| 1935 Residence (County) | Howard |
| Additional Details | |
| Occupation | Laborer |
| Industry | Contractor |
| Class of Worker | PW |
| Hours Worked | 12 |
| Income (1939) | 988 |
| Highest Grade | No 6 |
| 1935 Residence | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Laborer |
| Township / Ward | Election Dist 1 |
| Est. Birth Year | ~1912 |
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 James | Age | Birth yr |
|---|---|---|---|---|
| Stanley Nicholson | Son | — | 15 | ~1925 |
| James Nicholson | Son | — | 28 | ~1912 |
| Ida Nicholson | Spouse | — | 52 | ~1888 |
| Mildred Nicholson | Daughter | — | 13 | ~1927 |
| Le Nicholson | Son | — | 11 | ~1929 |
| James Nicholson | Head | — | 54 | ~1886 |
| Madeline Nicholson | Daughter | — | 17 | ~1923 |
Census Appearances
1930
Howard, Maryland
Son, age 15
Howard, Maryland · implied b. ~1915 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nicholson |
| Given Name | James E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 15 |
| 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
Howard-County, Maryland
Son, age 28
Howard-County, Maryland · implied b. ~1912 — 7 household members
| Surname | Nicholson |
| Given Name | James H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Jessup |
| 1935 Residence (County) | Howard |
| Occupation | Laborer |
| Industry | Contractor |
| Class of Worker | PW |
| Hours Worked | 12 |
| Income (1939) | 988 |
| Highest Grade | No 6 |
| 1935 Residence | Maryland |
| 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 James Nicholson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Nicholson
Son · 1940 · age 28 · b. ~1912 · Maryland
★ You are viewing this record
Sibling
Mildred Nicholson
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Madeline Nicholson
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Le Nicholson
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Stanley Nicholson
Sibling · 1940 · age 15
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 — Howard-County, Maryland
Open full size
1940 US Federal Census — Howard-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01552-00041)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Frank W. Albers | 66 | Head | Chief Janitor | Germany |
| 42 | Anna A. Albers | 62 | Wife | — | Maryland |
| 43 | Catherine Albers | 29 | Daughter | — | Maryland |
| 44 | William Albers | 18 | Son | Laborer | Maryland |
| 45 | Ida D. Luvig | 55 | Head | Bank Clerk | Maryland |
| 46 | Carrie M. Luvig | 45 | Sister | Saleslady | Maryland |
| 47 | John A. Scaggs | 59 | Head | Laborer | Maryland |
| 48 | Marie Miller | 24 | Daughter | — | Maryland |
| 49 | Robert Miller | 33 | Son-in-law | Florist | North Carolina |
| 50 | Dorothy Miller | 6 | Granddaughter | — | Maryland |
| 51 | Mary Lee Miller | 4 | Granddaughter | — | Maryland |
| 52 | Herbert Sifflet | 27 | Head | Farm Helper | Virginia |
| 53 | Ruby A. Sifflet | 20 | Wife | — | Virginia |
| 54 | Thelma Sifflet | 10 | Daughter | — | Virginia |
| 55 | Lana Sifflet | 7 | Daughter | — | Maryland |
| 56 | Lilly S. Gardner | 62 | Head | — | Maryland |
| 57 | Marian Gardner | 32 | Daughter | Teacher | Maryland |
| 58 | Hugh Gardner | 30 | Son | Foreman | Maryland |
| 59 | Larkin Gardner | 26 | Son | Merchant | Maryland |
| 60 | James E. Nicholson | 54 | Head | Laborer | Maryland |
| 61 | Ida L. Nicholson | 52 | Wife | — | Maryland |
| 62 | James H. Nicholson THIS PERSON | 28 | Son | Laborer | Maryland |
| 63 | Madeline Nicholson | 17 | Daughter | — | Maryland |
| 64 | Stanley Nicholson | 15 | Son | Farm Hand | Maryland |
| 65 | Mildred Nicholson | 13 | Daughter | — | Maryland |
| 66 | Le Roy Nicholson | 11 | Son | — | Maryland |
| 67 | George W. Brown | 51 | Head | Proprietor | Massachusetts |
| 68 | Elizabeth W. Brown | 46 | Wife | Teacher | Maryland |
| 69 | Sarah F. Brown | 16 | Daughter | — | Maryland |
| 70 | Peregrine W. Brown | 14 | Son | — | Maryland |
| 71 | Arthur W. Brown | 13 | Son | — | Maryland |
| 72 | Sarah F. Rank | 82 | Mother-in-law | — | Maryland |
| 73 | Amelia A. Wolf | 55 | Head | Proprietor | Maryland |
| 74 | Louis C. Wolf | 35 | Son | Proprietor | Maryland |
| 75 | Ella Wolf | 34 | Daughter-in-law | — | Maryland |
| 76 | Louis Jr. Wolf | 15 | Grandson | — | Maryland |
| 77 | Robert Wolf | 13 | Grandson | — | Maryland |
| 78 | David G. Sargent | 31 | Head | Superintendent | Virginia |
| 79 | Anna M. Sargent | 30 | Wife | — | West Virginia |
| 80 | David G. Jr. Sargent | 0 | Son | — | Virginia |
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)