JW
James Welsh — 1900 US Census Record
Linked across censuses1900 United States Federal Census · New Castle, Delaware
Our Model Tree links this James Welsh across the 1900 and 1910 US Censuses in New Castle, Delaware (XGBoost, ~Confirmed) — first a son (b.~1855), then head of a 5-person household.
Age 45
b. ~1855
Male
Son
Born: Delaware
Single
1900 Census Record Details
| Census Year | 1900 |
| Location | New Castle, Delaware |
| Surname | Welsh |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Single |
| Birthplace | Delaware |
| Birth Month | Jan |
| Birth Year | 1855 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Can Read | No |
| Can Write | No |
| Speaks English | No |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
| Township / Ward | Wilmington Hundred |
| 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.
5 people recorded at the same address in the 1900 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Patrick Welsh | Son | — | 35 | ~1865 |
| Lillie Middleditch | Other | — | 24 | ~1876 |
| James Welsh | Son | — | 45 | ~1855 |
| Thomas Welsh | Son | — | 39 | ~1861 |
| William Welsh | Head | — | 65 | ~1835 |
Census Appearances
1900
New Castle, …
Son, age 45
New Castle, Delaware · implied b. ~1855 — 5 household members
| Surname | Welsh |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Single |
| Birthplace | Delaware |
| Birth Month | Jan |
| Birth Year | 1855 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | No |
| Can Write | No |
| Speaks English | No |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
1910
New Castle, …
Son, age 56
New Castle, Delaware · implied b. ~1854 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Walsh |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 56 |
| Marital Status | Single |
| Birthplace | Delaware |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| 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 James Welsh across 2 US Census years (1900 and 1910) in New Castle, Delaware, using XGBoost record linkage.
Show:
This person
Anchor record
James Welsh
Son · 1900 · age 45 · b. ~1855 · Delaware
★ You are viewing this record
Sibling
Patrick Welsh
Sibling · 1900 · age 35
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Welsh
Sibling · 1900 · age 39
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
1900 US Federal Census — New Castle, Delaware
Open full size
1900 US Federal Census — New Castle, Delaware
Page Contents
50 people indexed on this census page (ia:1900:12thcensusofpopu156unit:0067)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Mary Miller | 15 | Daughter | Cl Clerk | Delaware |
| 52 | William Miller | 13 | Son | At School | Delaware |
| 53 | John J Miller | 31 | Son | Ship Joiner | Delaware |
| 54 | Mary Earner | 70 | Grand Mother | — | Ireland |
| 55 | Lansfield Wolner | 43 | Head | Slate Roofer | Pennsylvania |
| 56 | Margaret J Wolner | 38 | Wife | — | Pennsylvania |
| 57 | William E Wolner | 21 | Son | Hosiery Mill | Pennsylvania |
| 58 | Joseph B Wolner | 20 | Son | Morocco Finisher | Pennsylvania |
| 59 | Emma E Wolner | 17 | Daughter | Hosiery Mill | Pennsylvania |
| 60 | Marion E Wolner | 14 | Daughter | At School | Pennsylvania |
| 61 | Margaret E Wolner | 11 | Daughter | At School | Pennsylvania |
| 62 | Mary J Wolner | 10 | Daughter | At School | Pennsylvania |
| 63 | Harry R Wolner | 8 | Son | — | Pennsylvania |
| 64 | Frederick J Wolner | 6 | Son | — | Pennsylvania |
| 65 | Clara L Wolner | 5 | Daughter | — | Delaware |
| 66 | Frank H Wolner | 3 | Son | — | Delaware |
| 67 | John H Price | 57 | Boarder | Slater | Maryland |
| 68 | Michael O'Byrne | 66 | Head | Gen Labor | Ireland |
| 69 | Mary O'Byrne | 40 | Sister | Housekeeper | Delaware |
| 70 | Bridget Conner | 55 | Head | — | Ireland |
| 71 | Frank J Conner | 28 | Son | Salesman Shoes | Delaware |
| 72 | John Conner | 26 | Son | Brick Layer | Delaware |
| 73 | Maggie Conner | 24 | Daughter | — | Delaware |
| 74 | John Mckeegan | 50 | Head | — | Pennsylvania |
| 75 | Annie J Mckeegan | 39 | Wife | — | Delaware |
| 76 | John R Mckeegan | 23 | Son | — | Delaware |
| 77 | Sallie J Mckeegan | 18 | Daughter | Hosiery Mill | Delaware |
| 78 | Rose E Mckeegan | 15 | Daughter | Shirt Maker | Delaware |
| 79 | Thomas R Mckeegan | 13 | Son | At School | Delaware |
| 80 | Emma M B Mckeegan | 10 | Daughter | At School | Delaware |
| 81 | John M Mckeegan | 9 | Son | — | Delaware |
| 82 | William Welsh | 65 | Head | — | Ireland |
| 83 | James Welsh THIS PERSON | 45 | Son | — | Delaware |
| 84 | Thomas Welsh | 39 | Son | Office Boy Rr | Delaware |
| 85 | Patrick Welsh | 35 | Son | Plumber | Delaware |
| 86 | Lillie Middleditch | 23 | Housekeeper | House Keeper | Maryland |
| 87 | Bernard Mckenna | 74 | Head | Shoe Maker | Ireland |
| 88 | Jane Mckenna | 71 | Wife | — | Ireland |
| 89 | Catherine Mckenna | 32 | Daughter | House Keeper | Delaware |
| 90 | John Mckenna | 27 | Nephew | Morocco Finisher | Delaware |
| 91 | Mary Barry | 60 | Head | — | Ireland |
| 92 | William Barry | 28 | Son | Day Laborer | Delaware |
| 93 | John Foley | 60 | Boarder | — | Ireland |
| 94 | John Mordon | 35 | Head | Car Builder | Delaware |
| 95 | Annie Mordon | 35 | Wife | — | Ireland |
| 96 | Emma Mordon | 14 | Daughter | Morocco Dyer | Delaware |
| 97 | Mary Mordon | 12 | Daughter | Hosiery Mill | Delaware |
| 98 | Fred S Mordon | 10 | Son | At School | Delaware |
| 99 | John H Mordon | 9 | Son | — | Delaware |
| 100 | Leon Mordon | 6 | Son | — | Delaware |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1900 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)