JH
James Holland — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Rock-Island-County, Illinois
Our Model Tree links this James Holland across the 1930 and 1940 US Censuses in Rock-Island-County, Illinois (XGBoost, ~Confirmed) — first a son (b.~1925), then head of a 10-person household.
Age 15
b. ~1925
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Rock-Island-County, Illinois |
| Surname | Holland |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Rock Island City |
| 1935 Residence (County) | Rock Island |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Rock Island City |
| Est. Birth Year | ~1925 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Velma Holland | Daughter | — | 20 | ~1920 |
| Etta Holland | Daughter | — | 19 | ~1921 |
| Ruth Holland | Daughter | — | 24 | ~1916 |
| Opal Holland | Daughter | — | 12 | ~1928 |
| Minnie Holland | Daughter | — | 16 | ~1924 |
| John Holland | Head | — | 60 | ~1880 |
| Harry Holland | Son | — | 17 | ~1923 |
| Rolland Holland | Son | — | 4 | ~1936 |
| James Holland | Son | — | 15 | ~1925 |
| Matilda Holland | Spouse | — | 56 | ~1884 |
Census Appearances
1930
Rock Island, …
Son, age 5
Rock Island, Illinois · implied b. ~1925 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Holland |
| Given Name | James |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Rock-Island-County, Illinois
Son, age 15
Rock-Island-County, Illinois · implied b. ~1925 — 10 household members
| Surname | Holland |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Rock Island City |
| 1935 Residence (County) | Rock Island |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Holland across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Holland
Son · 1940 · age 15 · b. ~1925 · Illinois
★ You are viewing this record
Sibling
Rolland Holland
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harry Holland
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Etta Holland
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Opal Holland
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Minnie Holland
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Velma Holland
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Holland
Sibling · 1940 · age 24
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 — Rock-Island-County, Illinois
Open full size
1940 US Federal Census — Rock-Island-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00876-00254)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Jerry J. Travis | 60 | Head | Laborer | Missouri |
| 2 | Albert Johnson | 72 | Lodger | Laborer | Indiana |
| 3 | John Holland | 60 | Head | Laborer | Illinois |
| 4 | Matilda Holland | 56 | Wife | — | Illinois |
| 5 | Ruth Holland | 24 | Daughter | Seamstress | Illinois |
| 6 | Velma Holland | 20 | Daughter | Maid | Illinois |
| 7 | Etta Mae Holland | 19 | Daughter | Seamstress | Illinois |
| 8 | Harry Holland | 17 | Son | — | Illinois |
| 9 | Minnie Holland | 16 | Daughter | — | Illinois |
| 10 | James Holland THIS PERSON | 15 | Son | — | Illinois |
| 11 | Opal Holland | 12 | Daughter | — | Illinois |
| 12 | Rolland Holland | 4 | Son | — | Illinois |
| 13 | Sarah Kniff | 73 | Head | — | Poland |
| 14 | Charlotte D. Kniff | 41 | Daughter | Saleslady | Russia |
| 15 | Mollie Forman | 50 | Lodger | — | Latvia |
| 16 | Charles Katz | 24 | Lodger | Stockman | Illinois |
| 17 | Clyde S. Carl | 52 | Head | Tool Setter | Nebraska |
| 18 | Jennie Carl | 53 | Wife | — | Michigan |
| 19 | Ray Carl | 22 | Son | Truck Driver | Illinois |
| 20 | Clyde Carl | 18 | Son | — | Wisconsin |
| 21 | Allene Carl | 13 | Daughter | — | Iowa |
| 22 | Ida Honeyman | 59 | Head | Lodger | Russia |
| 23 | Esther Richman | 65 | Lodger | — | Russia |
| 24 | Leon Simon | 30 | Lodger | Stockman | Davenport |
| 25 | Fern De Frates | 27 | Lodger | Private Home | Springfield |
| 26 | Betty De Frates | 16 | Lodger | Private Home | Springfield |
| 27 | George Koch | 62 | Head | Tool Tender | Illinois |
| 28 | Mary Koch | 61 | Wife | — | Illinois |
| 29 | Martin Koch | 38 | Son | Switchman | Illinois |
| 30 | Lloyd Koch | 32 | Son | Loader Of Cars & Trucks | Illinois |
| 31 | Harold Koch | 28 | Son | — | Illinois |
| 32 | Caroline Koch | 36 | Sister-in-law | — | Illinois |
| 33 | William Yahan | 74 | Head | — | Illinois |
| 34 | Mary Yahan | 69 | Wife | — | Illinois |
| 35 | John Bysinger | 49 | Head | Pattern Maker | Illinois |
| 36 | Julia Bysinger | 44 | Wife | — | Illinois |
| 37 | Wallace Bysinger | 21 | Son | Apprentice | Illinois |
| 38 | Mary V. Dehler | 19 | Daughter | Office Work | Illinois |
| 39 | John K. Dehler | 1 | Grandson | — | Illinois |
| 40 | Sam Ornitz | 53 | Head | Proprietor | Russia |
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)