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Mary Mccormick — 1920 US Census Record
Linked across censuses1920 United States Federal Census · New Castle, Delaware
Our Model Tree links this Mary Mccormick across the 1900, 1910 and 1920 US Censuses in New Castle, Delaware (XGBoost, ~Confirmed) — first a spouse (b.~1855), then head of a 7-person household.
Age 65
b. ~1855
Female
Spouse
Born: Delaware
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | New Castle, Delaware |
| Surname | McCormick |
| Given Name | Mary E |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 65 |
| Marital Status | Married |
| Birthplace | Delaware |
| Father's Birthplace | Delaware |
| Mother's Birthplace | Delaware |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
| Township / Ward | Mill Creek Hundred Rep 8Th Dist |
| Est. Birth Year | ~1855 |
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 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Eliza Mccormick | Daughter | — | 27 | ~1893 |
| Lulu Mccormick | Daughter | — | 31 | ~1889 |
| Clarence Mccormick | Head | — | 60 | ~1860 |
| William Redpath | Other | — | 18 | ~1902 |
| Margaret Mccormick | Other | — | 4 | ~1916 |
| Clarence Mccormick | Other | — | 2 | ~1918 |
| Mary Mccormick | Spouse | — | 65 | ~1855 |
Census Appearances
1900
New Castle, …
Spouse, age 45
New Castle, Delaware · implied b. ~1855 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCormick |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Delaware |
| Birth Month | July |
| Birth Year | 1855 |
| Father's Birthplace | Delaware |
| Mother's Birthplace | Delaware |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
1910
New Castle, …
Spouse, age 56
New Castle, Delaware · implied b. ~1854 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCormick |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Delaware |
| Years Married | 26 |
| Children Born | 6 |
| Children Living | 2 |
| Father's Birthplace | Delaware |
| Mother's Birthplace | Delaware |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
1920
New Castle, …
Spouse, age 65
New Castle, Delaware · implied b. ~1855 — 7 household members
| Surname | McCormick |
| Given Name | Mary E |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 65 |
| Marital Status | Married |
| Birthplace | Delaware |
| Father's Birthplace | Delaware |
| Mother's Birthplace | Delaware |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
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 Mccormick across 3 US Census years (1900, 1910 and 1920) in New Castle, Delaware, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Mccormick
Spouse · 1920 · age 65 · b. ~1855 · Delaware
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1920 US Federal Census — New Castle, Delaware
Open full size
1920 US Federal Census — New Castle, Delaware
Page Contents
48 people indexed on this census page (ia:1920:14thcensusofpopu203unit:0984)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Robert L Donnell | 45 | Head | Farmer | Delaware |
| 2 | Laura H Donnell | 45 | Wife | — | Delaware |
| 3 | Raymond V Donnell | 21 | Son | Farm | Pennsylvania |
| 4 | Robert H Donnell | 19 | Son | Farm | Delaware |
| 5 | Lillian M Donnell | 17 | Daughter | — | Delaware |
| 6 | Marjorie Donnell | 15 | Daughter | — | Delaware |
| 7 | Ruth Donnell | 11 | Daughter | — | Delaware |
| 8 | Ethel Donnell | 9 | Daughter | — | Delaware |
| 9 | Earl F Donnell | 6 | Son | — | Delaware |
| 10 | Donald L Donnell | 4 | Son | — | Delaware |
| 11 | Clarence J Mccormick | 60 | Head | Farmer | Delaware |
| 12 | Mary E Mccormick THIS PERSON | 65 | Wife | — | Delaware |
| 13 | Lulu J Mccormick | 31 | Daughter | Farmer | Delaware |
| 14 | Eliza E Mccormick | 27 | Daughter | — | Pennsylvania |
| 15 | Margaret E Mccormick | 4 | Granddaughter | — | Delaware |
| 16 | Clarence J Mccormick | 2 | Grandson | — | Delaware |
| 17 | William Redpath | 18 | Hired man | Laborer | Pennsylvania |
| 18 | Samuel G Mccormick | 60 | Head | Farmer | Delaware |
| 19 | Anna Mary Mccormick | 57 | Sister | — | Delaware |
| 20 | Frank H Hill | 50 | Head | Farmer | Delaware |
| 21 | Margaret E Hill | 47 | Wife | — | Pennsylvania |
| 22 | Ralph H Hill | 23 | Son | Farm | Pennsylvania |
| 23 | Edith M Hill | 18 | Daughter | Stenographer | Pennsylvania |
| 24 | Arthur Hill | 13 | Son | — | Delaware |
| 25 | Thomas H Hill | 41 | Brother | — | Delaware |
| 26 | Samuel Goldstein | 32 | Head | Farmer | Roumania |
| 27 | Sadie Goldstein | 31 | Wife | — | Austria |
| 28 | Fannie Goldstein | 11 | Daughter | — | Delaware |
| 29 | Morris Goldstein | 9 | Son | — | Delaware |
| 30 | Jake Goldstein | 7 | Son | — | Delaware |
| 31 | Louis Goldstein | 1 | Son | — | Delaware |
| 32 | William Aiken | 43 | Head | Farmer | Delaware |
| 33 | Marie H Aiken | 40 | Wife | — | Delaware |
| 34 | Paul W Aiken | 19 | Son | Laborer | Delaware |
| 35 | Edna G Aiken | 17 | Daughter | — | Delaware |
| 36 | Sarah H Aiken | 14 | Daughter | — | Delaware |
| 37 | Dorothy Aiken | 11 | Daughter | — | Delaware |
| 38 | Merlin Aiken | 9 | Son | — | Delaware |
| 39 | Lawrence Aiken | 8 | Son | — | Delaware |
| 40 | Annabelle Aiken | 5 | Daughter | — | Delaware |
| 41 | William Aiken | 3 | Son | — | Delaware |
| 42 | Lydia H Aiken | 62 | Head | Farmer | Delaware |
| 43 | Florence Aiken | 32 | Wife | — | Delaware |
| 44 | Edith E Aiken | 28 | Daughter | — | Delaware |
| 45 | Mary E Johnson | 29 | Daughter | Nursing | Delaware |
| 46 | Lydia Marshall Johnson | 8 | Granddaughter | — | Delaware |
| 47 | Florence Johnson | 5 | Granddaughter | — | Delaware |
| 48 | Bartley Hammond | 75 | Hired man | Labourer | Pennsylvania |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)