LN
Lillian Nelson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Baltimore-County, Maryland
Our Model Tree links this Lillian Nelson across the 1920, 1930 and 1940 US Censuses in Baltimore-County, Maryland (XGBoost, ~Confirmed), with identified parents William & Amelia — first a daughter (b.~1905), then head of a 3-person household.
Age 35
b. ~1905
Female
Daughter
Born: Maryland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-County, Maryland |
| Surname | Nelson |
| Given Name | Lillian M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Halethorpe Arbutus pt Unincorporated place Ridgewood |
| 1935 Residence (County) | Baltimore |
| Additional Details | |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Halethorpe Arbutus Pt Unincorporated Place Ridgewood |
| Est. Birth Year | ~1905 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Lillian | Age | Birth yr |
|---|---|---|---|---|
| George Nelson | Son | — | 38 | ~1902 |
| Lillian Nelson | Daughter | — | 35 | ~1905 |
| Amelia Nelson | Head | — | 73 | ~1867 |
Census Appearances
1920
Baltimore, Maryland
Daughter, age 14
Baltimore, Maryland · implied b. ~1906 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Laura |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
Daughter, age 25
Baltimore, Maryland · implied b. ~1905 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Laura L. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Pennsylvania |
| Occupation | Secretary |
| Industry | Private school |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-County, Maryland
Daughter, age 35
Baltimore-County, Maryland · implied b. ~1905 — 3 household members
| Surname | Nelson |
| Given Name | Lillian M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Halethorpe Arbutus pt Unincorporated place Ridgewood |
| 1935 Residence (County) | Baltimore |
| Highest Grade | No 6 |
| 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 Lillian Nelson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Nelson (~0.92 confidence) and mother Amelia Nelson (~0.92 confidence) and mother Elsie Nelson (~0.92 confidence) and mother Elsie Nelson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Nelson
b. ~1872
Source father
● Household
· direct · ~0.92
Mother
Amelia Nelson
b. ~1867
Source mother
● Household
· direct · ~0.92
Mother
Elsie Nelson
b. ~1870
Source mother
● Household
· direct · ~0.92
Mother
Elsie Nelson
b. ~1873
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Lillian Nelson
Daughter · 1940 · age 35 · b. ~1905 · Maryland
★ You are viewing this record
Sibling
George Nelson
Sibling · 1940 · age 38
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-t0627-01506-00448)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William M. Romans | 62 | Head | Carpenter | Maryland |
| 2 | Ella G. Romans | 63 | Wife | — | Maryland |
| 3 | Mary Hesterberg | 45 | Head | — | Maryland |
| 4 | Howard Hesterberg | 24 | Son | Clerk | Maryland |
| 5 | Agnes Hesterberg | 30 | Wife | — | Maryland |
| 6 | Milton Treadwell | 25 | Head | Clerk | Maryland |
| 7 | Myrtle Treadwell | 28 | Wife | — | Maryland |
| 8 | Arthur Winkleman | 59 | Head | Letter Carrier | Maryland |
| 9 | Blanche Winkleman | 50 | Wife | — | Maryland |
| 10 | George J. Schmidt | 78 | Head | — | Maryland |
| 11 | Ida E. Schmidt | 76 | Wife | — | Maryland |
| 12 | Freudenberger A. Schmidt | 55 | Daughter | — | Maryland |
| 13 | Amelia Nelson | 73 | Head | — | Germany |
| 14 | George E. Nelson | 38 | Son | Vice President | Maryland |
| 15 | Lillian M. Nelson THIS PERSON | 35 | Daughter | — | Maryland |
| 16 | George W. Becker | 49 | Head | Secretary | Maryland |
| 17 | Caroline Becker | 47 | Wife | — | Maryland |
| 18 | Wilber A. Becker | 26 | Son | Pressman | Maryland |
| 19 | Ruth Coffay | 28 | Head | Packer | Maryland |
| 20 | James Coffay | 60 | Father | — | Maryland |
| 21 | Clara Coffay | 59 | Mother | — | Maryland |
| 22 | William P. Muhl | 53 | Head | Attendant | Maryland |
| 23 | Emma A. Muhl | 52 | Wife | — | Maryland |
| 24 | Ludwig Frank Muhl | 29 | Son in Law | Attendant | Maryland |
| 25 | Mildred Muhl | 26 | Wife | Stenographer | Maryland |
| 26 | Charles Schneider | 67 | Head | — | Maryland |
| 27 | Carrie F. Schneider | 66 | Wife | — | Maryland |
| 28 | Herbert H. Ruehl | 42 | Head | Salesman | Maryland |
| 29 | William Ruehl | 70 | Father | — | Maryland |
| 30 | Elizabeth Ruehl | 69 | Mother | — | Germany |
| 31 | Mary Ruehl | 74 | Aunt | — | Maryland |
| 32 | Emil Zelinski | 44 | Head | Tailor | Maryland |
| 33 | Mary Zelinski | 38 | Wife | Tailor | Maryland |
| 34 | Emil Zelinski | 17 | Son | — | Maryland |
| 35 | Otto M. Pertsch | 50 | Head | Proprietor | Maryland |
| 36 | Johanna Pertsch | 48 | Wife | — | Germany |
| 37 | Anna C. Pertsch | 19 | Daughter | — | Maryland |
| 38 | Ibet Nettchen Pertsch | 75 | Mother in Law | — | Germany |
| 39 | John N. Schubert | 74 | Head | — | Maryland |
| 40 | Edna L. Schubert | 75 | Wife | — | Maryland |
Related Census Records
Pedigree Summary
Lillian + 1 sibling
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)