William Blair — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Hampden-County, Massachusetts

Our Model Tree links this William Blair across the 1920, 1930 and 1940 US Censuses in Hampden-County, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1873), then head of a 4-person household.

Age 67 b. ~1873 Male Head Born: New York Married

1940 Census Record Details

Census Year	1940
Location	Hampden-County, Massachusetts
Surname	Blair
Given Name	William
Relationship to Head	Head
Sex	M
Color / Race	White
Age	67
Marital Status	Married
Birthplace	New York
1935 Residence (City)	S. Place
1935 Residence (County)	Hampden
Additional Details
Income (1939)	0
Highest Grade	No 4
1935 Residence	Same place
Birth State	New York
Birth Country	United States
Birthplace (normalized)	new york
Township / Ward	Springfield
Est. Birth Year	~1873

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.

4 people recorded at the same address in the 1940 census.

Name	Relation to head	Relative to William	Age	Birth yr
William Blair	Head	—	67	~1873
Alexina La Valley	Other	—	15	~1925
Edward Blair	Son	—	38	~1902
Mary Blair	Spouse	—	71	~1869

Census Appearances

1920

Hampden, Massachusetts

Head, age 47

Hampden, Massachusetts · implied b. ~1873 — 6 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Blair
Given Name	William G
Relationship to Head	Head
Sex	M
Color / Race	White
Age	47
Marital Status	Married
Birthplace	New York
Father's Birthplace	Vermont
Mother's Birthplace	Vermont
Occupation	Painter
Industry	Street Car Shop
Class of Worker	W
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Home Owned/Rented	R
Birth State	New York
Birth Country	United States
Birthplace (normalized)	new york

1930

Hampden, Massachusetts

Head, age 57

Hampden, Massachusetts · implied b. ~1873 — 4 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Blair
Given Name	William
Relationship to Head	Head
Sex	M
Color / Race	White
Age	57
Marital Status	Married
Birthplace	New York
Age at First Marriage	29
Father's Birthplace	Canada-French
Mother's Birthplace	Canada-French
Occupation	Painter
Industry	Interior Decorating
Class of Worker	W
Can Read/Write	Yes
Home Owned/Rented	R
Home Value / Rent	25
Birth State	New York
Birth Country	United States
Birthplace (normalized)	new york

1940

Hampden-County, Massachusetts

Head, age 67

Hampden-County, Massachusetts · implied b. ~1873 — 4 household members

Surname	Blair
Given Name	William
Relationship to Head	Head
Sex	M
Color / Race	White
Age	67
Marital Status	Married
Birthplace	New York
1935 Residence (City)	S. Place
1935 Residence (County)	Hampden
Income (1939)	0
Highest Grade	No 4
1935 Residence	Same place
Birth State	New York
Birth Country	United States
Birthplace (normalized)	new york

Model Tree

Linked across censuses

Our Model Tree links William Blair across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.

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This person

Anchor record

William Blair

Head · 1940 · age 67 · b. ~1873 · Massachusetts

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Confirmed / household (~0.90+) Probable / derived (~0.65–0.89) Candidate (<0.65, unverified)

Original Census Page

1940 US Federal Census — Hampden-County, Massachusetts Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-01709-00087)

Line	Name	Age	Relation	Occupation	Birthplace
1	William Blair THIS PERSON	67	Head	—	New York
2	Mary Blair	71	Wife	—	New York
3	Edward J. Blair	38	Son	Painter	Massachusetts
4	Alexina La Valley	15	Grand daughter	—	Massachusetts
5	Paul J. Muisly	41	Head	Gas Attendant	Canada French
6	Mabel Muisly	34	Wife	—	N. Hampshire
7	Paul Jr. Muisly	15	Son	Gas Attendant	Maine
8	Richard Muisly	10	Son	—	Massachusetts
9	Stanley Muisly	3	Son	—	Massachusetts
10	Rocco Bruno	27	Head	Laborer	Italy
11	Carmella Bruno	24	Wife	—	Connecticut
12	Rocco Jr. Bruno	2	Son	—	Massachusetts
13	Susan M. Bruno	1	Daughter	—	Massachusetts
14	Rose Deely	55	Head	—	Connecticut
15	Rose Deely	32	Daughter	Sewer	Massachusetts
16	Ruth Deely	29	Daughter	Box Maker	Massachusetts
17	Katherine Deely	24	Daughter	Inspector	Massachusetts
18	Robert Deely	18	Son	—	Massachusetts
19	Jean Deely	13	Daughter	—	Massachusetts
20	Roy La Fleur	42	Head	Mail Porter	Massachusetts
21	Laura La Fleur	42	Wife	—	N. Hampshire
22	Dorothy La Fleur	13	Wife	—	N. Hampshire
23	Robert La Fleur	10	Son	—	Massachusetts
24	Julius La Fleur	68	Father	—	New York
25	Patrick Crowley	53	Head	Laborer	Irish Free State
26	Gertrude Crowley	43	Wife	—	Massachusetts
27	Gertrude Crowley	27	Daughter	Machine Operator	Massachusetts
28	Kathleen Crowley	22	Daughter	—	Massachusetts
29	Marjorie Crowley	19	Daughter	Salesgirl	Massachusetts
30	Marian Crowley	16	Daughter	—	Massachusetts
31	Joseph Crowley	28	Head	Truck Driver	Massachusetts
32	Viola B. Crowley	26	Wife	—	Massachusetts
33	Barbara Crowley	6	Daughter	—	Massachusetts
34	Patricia A. Crowley	4	Daughter	—	Massachusetts
35	Constance Crowley	3	Daughter	—	Massachusetts
36	Salvatore Belcamino	64	Head	Shipper	Italy
37	Angela Belcamino	55	Wife	—	Italy
38	Stella Belcamino	29	Daughter	—	Pennsylvania
39	Rose Belcamino	24	Daughter	Solderer	Pennsylvania
40	Netta Belcamino	22	Daughter	Weaver	Massachusetts

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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)

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