MN
Mary Norris — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Carroll-County, Maryland
Our Model Tree links this Mary Norris across the 1930 and 1940 US Censuses in Carroll-County, Maryland (XGBoost, ~Confirmed) — first a daughter (b.~1927), then head of a 6-person household.
Age 13
b. ~1927
Female
Daughter
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Carroll-County, Maryland |
| Surname | Norris |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Sykesville |
| 1935 Residence (County) | Carroll |
| Additional Details | |
| Highest Grade | M 6 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Sykesville |
| Est. Birth Year | ~1927 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Naomi Norris | Daughter | — | 16 | ~1924 |
| Eugene Norris | Head | — | 39 | ~1901 |
| Ethel Norris | Spouse | — | 38 | ~1902 |
| Earl Norris | Son | — | 14 | ~1926 |
| Eugene Norris | Son | — | 1 | ~1939 |
| Mary Norris | Daughter | — | 13 | ~1927 |
Census Appearances
1930
Carroll, Maryland
Daughter, age 2
Carroll, Maryland · implied b. ~1928 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Norris |
| Given Name | Mary R |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 2 |
| 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
Carroll-County, Maryland
Daughter, age 13
Carroll-County, Maryland · implied b. ~1927 — 6 household members
| Surname | Norris |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Sykesville |
| 1935 Residence (County) | Carroll |
| Highest Grade | M 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 Mary Norris across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Norris
Daughter · 1940 · age 13 · b. ~1927 · Maryland
★ You are viewing this record
Sibling
Earl Norris
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Naomi Norris
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eugene Norris
Sibling · 1940 · age 1
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 — Carroll-County, Maryland
Open full size
1940 US Federal Census — Carroll-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01544-00292)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | James Morris | 54 | Head | Farmer | Maryland |
| 42 | Eliza Morris | 54 | Wife | General Housework | Maryland |
| 43 | James Morris | 17 | Grandson | — | Maryland |
| 44 | Eugene Holland | 27 | Son in law | Gardener | Maryland |
| 45 | Helen Holland | 27 | Daughter | Maid | Maryland |
| 46 | Eugene (X) Norris | 39 | Head | Laborer | Maryland |
| 47 | Ethel Norris | 38 | Wife | — | Maryland |
| 48 | Naomi Norris | 16 | Daughter | — | Maryland |
| 49 | Earl Norris | 14 | Son | — | Maryland |
| 50 | Mary Norris THIS PERSON | 13 | Daughter | — | Maryland |
| 51 | Eugene Norris | 1 | Son | — | Maryland |
| 52 | Gail Norris | 36 | Head | Laborer | Maryland |
| 53 | Mabel (X) Norris | 30 | Wife | — | Maryland |
| 54 | William Avers | 12 | Son | — | Maryland |
| 55 | Alena Avers | 16 | Daughter | New Worker | Maryland |
| 56 | Jasper (X) Bullock | 34 | Head | Laborer | North Carolina |
| 57 | Marie Bullock | 32 | Wife | Maid | Maryland |
| 58 | James A Johnson | 41 | Head | Laborer | Maryland |
| 59 | Lucille (X) Johnson | 38 | Wife | — | Maryland |
| 60 | Ruth Johnson | 17 | Daughter | Maid | Maryland |
| 61 | Mary Johnson | 16 | Daughter | — | Maryland |
| 62 | Savilla Johnson | 15 | Daughter | — | Maryland |
| 63 | Dorothy Johnson | 13 | Daughter | — | Maryland |
| 64 | Lily Johnson | 10 | Daughter | — | Maryland |
| 65 | Margurite Johnson | 8 | Daughter | — | Maryland |
| 66 | James Johnson | 11 | Son | — | Maryland |
| 67 | Thurman Johnson | 6 | Son | — | Maryland |
| 68 | Eugene Johnson | 4 | Son | — | Maryland |
| 69 | Helen Johnson | 2 | Daughter | — | Maryland |
| 70 | Carolyn Johnson | 0 | Daughter | — | Maryland |
| 71 | Seville Frey | 66 | Head | — | Maryland |
| 72 | William Frey | 33 | Son | Laborer | Maryland |
| 73 | Louise Johnson | 13 | Granddaughter | Maid | Maryland |
| 74 | Owen (X) Norris | 43 | Head | Gardener | Maryland |
| 75 | Lavinia Griffin | 72 | Head | — | Maryland |
| 76 | Virginia Griffin | 56 | Daughter | — | Maryland |
| 77 | James C. (X) Thomas | 59 | Head | Laborer | Maryland |
| 78 | Edward Thomas | 15 | Son | — | Maryland |
| 79 | Earl Thomas | 18 | Son | Laborer | Maryland |
| 80 | Amanda Reeves | 30 | Cook | Cook | 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)