MN
Margaret Nolan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this Margaret Nolan across the 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed) — first a daughter (b.~1924), then head of a 8-person household.
Age 16
b. ~1924
Female
Daughter
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | Nolan |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | BALTIMORE CITY |
| 1935 Residence (County) | Baltimore City |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same Place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1924 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Catherine Nolan | Daughter | — | 20 | ~1920 |
| Anthony Nolan | Head | — | 45 | ~1895 |
| Joseph Nolan | Son | — | 9 | ~1931 |
| James Nolan | Son | — | 19 | ~1921 |
| Marie Nolan | Daughter | — | 11 | ~1929 |
| Margaret Nolan | Daughter | — | 16 | ~1924 |
| Ellen Nolan | Son | — | 19 | ~1921 |
| Jr Nolan | Son | — | 21 | ~1919 |
Census Appearances
1930
Baltimore, Maryland
Daughter, age 5
Baltimore, Maryland · implied b. ~1925 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nolan |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | none |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Daughter, age 16
Baltimore-City-County, Maryland · implied b. ~1924 — 8 household members
| Surname | Nolan |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | BALTIMORE CITY |
| 1935 Residence (County) | Baltimore City |
| Income (1939) | 0 |
| Highest Grade | Hs 2 |
| 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 Margaret Nolan across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Margaret Nolan
Daughter · 1940 · age 16 · b. ~1924 · Maryland
★ You are viewing this record
Sibling
Marie Nolan
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Nolan
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jr Nolan
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Nolan
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Nolan
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ellen Nolan
Sibling · 1940 · age 19
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-t0627-01531-00550)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Thomas E. Gullidge | 40 | Head | Machinist | Arkansas |
| 42 | Doris Gullidge | 19 | Daughter | — | Maryland |
| 43 | Fritz Johnson | 45 | Head | Chauffeur | Germany |
| 44 | Naomi Johnson | 33 | Wife | — | Maryland |
| 45 | Clay Dehoff | 37 | Brother-in-law | Laborer | Maryland |
| 46 | Samuel Sermont | 22 | Head | Laborer | Maryland |
| 47 | Anita Sermont | 21 | Wife | — | Maryland |
| 48 | Sandra Lee Sermont | 2 | Daughter | — | Maryland |
| 49 | Carrie Waltershoffer | 68 | Wife | — | New York |
| 50 | Charles Waltershoffer | 57 | Head | Tailor | Maryland |
| 51 | Mary Ann C. Roche | 33 | Son | — | Maryland |
| 52 | Charles Roche | 42 | Head | Welder | Maryland |
| 53 | William Wigman | 62 | Head | Stock Clerk | Maryland |
| 54 | Rita Wigman | 22 | Daughter | — | Maryland |
| 55 | Leroy Nee | 41 | Son-in-law | Presser | Maryland |
| 56 | Dorothy Nee | 30 | Daughter | — | Maryland |
| 57 | John Nee | 11 | Grandson | — | Maryland |
| 58 | Joseph Nee | 5 | Grandson | — | Maryland |
| 59 | Mary Nee | 1 | Granddaughter | — | Maryland |
| 60 | Milton G. Jones | 45 | Head | Carpenter | Maryland |
| 61 | Katherine Jones | 42 | Wife | — | Maryland |
| 62 | Richard G. Jones | 15 | Son | — | Maryland |
| 63 | Lovenia Ford | 77 | Mother-in-law | — | Maryland |
| 64 | Alfred C. Hoffman | 74 | Boarder | Special Police | Germany |
| 65 | John Ward | 45 | Lodger | Clerk | Pennsylvania |
| 66 | Kyle Molls | 25 | Lodger | Plumber | Tennessee |
| 67 | Dummay Tripp | 25 | Lodger | Welder | N. Carolina |
| 68 | Edith M. Webb | 60 | Head | — | Maryland |
| 69 | Martha Hoops | 48 | Sister | — | Maryland |
| 70 | Edmond G. Hoops | 48 | Brother-in-law | Clerk | Maryland |
| 71 | Bridget Nolan | 43 | Wife | Contractor | Free State |
| 72 | Anthony Nolan | 45 | Head | Clerk | Maryland |
| 73 | Jr. Anthony Nolan | 21 | Son | Clerk | Maryland |
| 74 | Catherine Nolan | 20 | Daughter | Beautician | Maryland |
| 75 | Ellen Nolan | 19 | Son | New Worker | Maryland |
| 76 | James Nolan | 19 | Son | — | Maryland |
| 77 | Margaret Nolan THIS PERSON | 16 | Daughter | — | Maryland |
| 78 | Marie Nolan | 11 | Daughter | — | Maryland |
| 79 | Joseph Nolan | 9 | Son | — | Maryland |
| 80 | Gertrude Watts | 71 | Head | — | 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)