MS
Mary Shields — 1920 US Census Record
Model Tree available1920 United States Federal Census · New Castle, Delaware
Our Model Tree links this Mary Shields across the 1900, 1910 and 1920 US Censuses in New Castle, Delaware (XGBoost, ~Confirmed), with identified parents James & Margaret — first a daughter (b.~1889), then head of a 5-person household.
Age 31
b. ~1889
Female
Daughter
Born: Delaware
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | New Castle, Delaware |
| Surname | Shields |
| Given Name | Mary W. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| 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 | Wilmington City |
| Est. Birth Year | ~1889 |
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.
5 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| William Shields | Son | — | 28 | ~1892 |
| James Shields | Head | — | 57 | ~1863 |
| Alice Shields | Daughter | — | 25 | ~1895 |
| Edna Shields | Daughter | — | 26 | ~1894 |
| Mary Shields | Daughter | — | 31 | ~1889 |
Census Appearances
1900
New Castle, …
Daughter, age 11
New Castle, Delaware · implied b. ~1889 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Shields |
| Given Name | Mary E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Delaware |
| Birth Month | Jan |
| Birth Year | 1889 |
| Father's Birthplace | Delaware |
| Mother's Birthplace | Delaware |
| Occupation | At School |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
1910
New Castle, …
Daughter, age 21
New Castle, Delaware · implied b. ~1889 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Shields |
| Given Name | Mary E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Delaware |
| Father's Birthplace | Delaware |
| Mother's Birthplace | Delaware |
| Occupation | Stenographer |
| Industry | Dept Store |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
1920
New Castle, …
Daughter, age 31
New Castle, Delaware · implied b. ~1889 — 5 household members
| Surname | Shields |
| Given Name | Mary W. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| 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 Shields across 3 US Census years (1900, 1910 and 1920) in New Castle, Delaware, using XGBoost record linkage. Identified parents: father James Shields (~0.92 confidence) and mother Margaret Shields (~0.92 confidence) and father Martin Shields (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Shields
b. ~1863
Source father
● Household
· direct · ~0.92
Mother
Margaret Shields
b. ~1868
Source mother
● Household
· direct · ~0.92
Father
Martin Shields
b. ~1868
Source father
● Household
· direct · ~0.92
This person
Anchor record
Mary Shields
Daughter · 1920 · age 31 · b. ~1889 · Delaware
★ You are viewing this record
Sibling
William Shields
Sibling · 1920 · age 28
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Shields
Sibling · 1920 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edna Shields
Sibling · 1920 · age 26
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
1920 US Federal Census — New Castle, Delaware
Open full size
1920 US Federal Census — New Castle, Delaware
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu203unit:0114)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Miles F. Bennett | 62 | Lodger | Carpenter | Pennsylvania |
| 2 | Annie P. Bennett | 57 | Lodger | — | Delaware |
| 3 | Esther Bishop | 27 | Lodger | Stenographer | Maryland |
| 4 | Harry J. Diehl | 27 | Lodger | Editor | New York |
| 5 | James H. Thomas | 46 | Head | — | Maryland |
| 6 | Annie H. Buckley | 36 | Boarder | Paying Teller | Pennsylvania |
| 7 | Samuel M. Ford | 44 | Head | Claim Agent | Delaware |
| 8 | Jeanette W. Ford | 44 | Wife | — | Maryland |
| 9 | Samuel W. Ford | 15 | Son | — | Delaware |
| 10 | John W. Batelle | 72 | Father-in-law | — | Delaware |
| 11 | William F. Voss | 65 | Head | Superintendent | Germany |
| 12 | Agnes M. Voss | 41 | Daughter | Superintendent | Iowa |
| 13 | Archibald S. Reed | 72 | Head | — | Pennsylvania |
| 14 | Sarah J. Reed | 71 | Wife | — | Maryland |
| 15 | Annie J. Reed | 39 | Daughter | — | Delaware |
| 16 | Garrett Reed | 34 | Son | — | Delaware |
| 17 | Edwin J. Buckley | 59 | Head | Contractor | Delaware |
| 18 | Mary B. Buckley | 55 | Wife | Foreman | Delaware |
| 19 | Edwin J. Buckley | 20 | Son | — | Delaware |
| 20 | Earl G. Buckley | 19 | Son | — | Delaware |
| 21 | Alfred A. Lee | 76 | Father-in-law | — | Delaware |
| 22 | Joseph Nolan | 28 | Head | — | Pennsylvania |
| 23 | Grace M. Nolan | 27 | Wife | Contractor | Delaware |
| 24 | William M. Nolan | 5 | Son | — | Delaware |
| 25 | Joseph W. Tyson | 68 | Father-in-law | — | Maryland |
| 26 | Sarah J. Tyson | 64 | Mother-in-law | Solicitor | Delaware |
| 27 | Victor P. Brennan | 31 | Head | — | Pennsylvania |
| 28 | Edna M. Brennan | 28 | Wife | Manager | New York |
| 29 | Isabelle Brennan | 2 | Daughter | — | Delaware |
| 30 | Betty Brennan | 1 | Daughter | — | Delaware |
| 31 | Thomas Donoghue | 49 | Head | Claim Agent | Pennsylvania |
| 32 | Alice Donoghue | 48 | Wife | — | Pennsylvania |
| 33 | Ethel Donoghue | 24 | Daughter | Stenographer | Pennsylvania |
| 34 | John Donoghue | 18 | Son | — | Pennsylvania |
| 35 | Margaret Donoghue | 17 | Daughter | — | Pennsylvania |
| 36 | Marie Tingley | 25 | Boarder | Accountant | Pennsylvania |
| 37 | Margaret Tingley | 29 | Boarder | Bookkeeper | Pennsylvania |
| 38 | William B. Pyle | 49 | Head | Special Agent | Delaware |
| 39 | Mabel H. Pyle | 53 | Sister | — | Delaware |
| 40 | Edward Midlam | 47 | Head | Shipper | Maryland |
| 41 | Emily B. Midlam | 47 | Wife | — | Maryland |
| 42 | Elizabeth W. Midlam | 17 | Daughter | — | Maryland |
| 43 | Edward Jr. Midlam | 12 | Son | — | Delaware |
| 44 | Emma Midlam | 6 | Daughter | — | Delaware |
| 45 | Georgiana Butler | 84 | Mother-in-law | — | Maryland |
| 46 | James Shields | 57 | Head | — | Delaware |
| 47 | Mary W. Shields THIS PERSON | 31 | Daughter | — | Delaware |
| 48 | William H. Shields | 28 | Son | — | Delaware |
| 49 | Edna Shields | 26 | Daughter | Typist | Delaware |
| 50 | Alice D. Shields | 25 | Daughter | Clerk | New Hampshire |
Pedigree Summary
Mary + 3 siblings
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
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)