CM
Charles Mcdonald — 1930 US Census Record
Model Tree available1930 United States Federal Census · Middlesex, Massachusetts
Our Model Tree links this Charles Mcdonald across the 1910, 1920 and 1930 US Censuses in Middlesex, Massachusetts (XGBoost, ~Confirmed), with identified parents James & James — first a son (b.~1907), then head of a 5-person household.
Age 23
b. ~1907
Male
Son
Born: Massachusetts
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Middlesex, Massachusetts |
| Surname | McDonald |
| Given Name | Charles P |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | Driver |
| Industry | Trucking |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Driver |
| Township / Ward | Town Of Arlington Part |
| Est. Birth Year | ~1907 |
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 1930 census.
| Name | Relation to head | Relative to Charles | Age | Birth yr |
|---|---|---|---|---|
| William Mcdonald | Son | — | 22 | ~1908 |
| Mary Mcdonald | Other | — | 55 | ~1875 |
| James Mcdonald | Head | — | 55 | ~1875 |
| Charles Mcdonald | Son | — | 23 | ~1907 |
| James Mcdonald | Son | — | 20 | ~1910 |
Census Appearances
1910
Middlesex, Massachusetts
Son, age 4
Middlesex, Massachusetts · implied b. ~1906 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | MacDonald |
| Given Name | Charles G |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1920
Middlesex, Massachusetts
Son, age 13
Middlesex, Massachusetts · implied b. ~1907 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | MacDonald |
| Given Name | Charles |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Massachusetts |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Son, age 23
Middlesex, Massachusetts · implied b. ~1907 — 5 household members
| Surname | McDonald |
| Given Name | Charles P |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Driver |
| Industry | Trucking |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
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 Charles Mcdonald across 3 US Census years (1910, 1920 and 1930) in Middlesex, Massachusetts, using XGBoost record linkage. Identified parents: father James Macdonald (~0.92 confidence) and father James Mcdonald (~0.92 confidence) and mother Annie Macdonald (~0.92 confidence) and mother Agnes Macdonald (~0.92 confidence) and father James Macdonald (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Macdonald
b. ~1875
Source father
● Household
· direct · ~0.92
Father
James Mcdonald
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Annie Macdonald
b. ~1876
Source mother
● Household
· direct · ~0.92
Mother
Agnes Macdonald
b. ~1879
Source mother
● Household
· direct · ~0.92
Father
James Macdonald
b. ~1880
Source father
● Household
· direct · ~0.92
This person
Anchor record
Charles Mcdonald
Son · 1930 · age 23 · b. ~1907 · Massachusetts
★ You are viewing this record
Sibling
James Mcdonald
Sibling · 1930 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Mcdonald
Sibling · 1930 · age 22
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
1930 US Federal Census — Middlesex, Massachusetts
Open full size
1930 US Federal Census — Middlesex, Massachusetts
Page Contents
50 people indexed on this census page (ia:1930:massachusettscensus00reel913:0842)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Paul D Campbell | 37 | Head | Salesman | New Hampshire |
| 52 | Margaret E Campbell | 36 | Wife-H | — | Massachusetts |
| 53 | Edward Campbell | 15 | Son | — | Massachusetts |
| 54 | Paul D Jr Campbell | 10 | Son | — | Massachusetts |
| 55 | Mary Campbell | 6 | Daughter | — | Massachusetts |
| 56 | Thomas J Campbell | 1 | Son | — | Massachusetts |
| 57 | Robert F Serrate | 35 | Head | Mechanic | Louisiana |
| 58 | Thelma Serrate | 28 | Wife-H | — | Louisiana |
| 59 | Joseph A Griffin | 45 | Head | Superviser | Massachusetts |
| 60 | Marion E Griffin | 41 | Wife-H | — | Massachusetts |
| 61 | Edward Griffin | 18 | Son | Student | Massachusetts |
| 62 | Josephine Griffin | 9 | Daughter | — | Massachusetts |
| 63 | Marion Griffin | 8 | Daughter | — | Massachusetts |
| 64 | James Griffin | 1 | Son | — | Massachusetts |
| 65 | Charles Lindstrand | 32 | Head | Mechanic | Sweden |
| 66 | Freda Lindstrand | 29 | Wife-H | — | Sweden |
| 67 | Dorothy Lindstrand | 3 | Daughter | — | Massachusetts |
| 68 | Patrick J Grady | 39 | Head | Foreman | Ireland |
| 69 | Mary Grady | 37 | Wife-H | — | Ireland |
| 70 | Mary E Grady | 3 | Daughter | — | Massachusetts |
| 71 | Michael Mcgoldrick | 4 | Nephew | — | Massachusetts |
| 72 | Martin Feeley | 21 | Boarder | Laborer | Ireland |
| 73 | Samuel M White | 41 | Head | Salesman | Canada English |
| 74 | Florence M White | 39 | Wife-H | — | Canada English |
| 75 | William Edwards | 48 | Head | — | England |
| 76 | Maude E Edwards | 44 | Wife-H | — | England |
| 77 | David Mahoney | 32 | Head | Plasterer | Massachusetts |
| 78 | Alice Mahoney | 32 | Wife-H | — | Massachusetts |
| 79 | John J Mcgrath | 37 | Head | Store Manager | Massachusetts |
| 80 | Esther B Mcgrath | 32 | Wife-H | — | Massachusetts |
| 81 | John J Jr Mcgrath | 12 | Son | — | Massachusetts |
| 82 | Charles Clark | 25 | Head | Engineer | Massachusetts |
| 83 | Margaret Clark | 27 | Wife-H | — | Pennsylvania |
| 84 | Charles Jr Clark | 1 | Son | — | Massachusetts |
| 85 | Mary Clark | 0 | Daughter | — | Massachusetts |
| 86 | James Mcdonald | 55 | Head | Janitor | Ireland |
| 87 | Mary Mcdonald | 55 | Wife-H | — | Ireland |
| 88 | Charles P Mcdonald THIS PERSON | 23 | Son | Driver | Massachusetts |
| 89 | William Mcdonald | 22 | Son | Manager | Massachusetts |
| 90 | James R Mcdonald | 20 | Son | Carpenter | Massachusetts |
| 91 | Augusto Agostino | 31 | Head | Mason | Italy |
| 92 | Lucy Agostino | 25 | Wife-H | — | Massachusetts |
| 93 | Theodora Agostino | 11 | Daughter | — | Massachusetts |
| 94 | Malvina Agostino | 9 | Daughter | — | Massachusetts |
| 95 | Janice Agostino | 8 | Daughter | — | Massachusetts |
| 96 | Carolina Agostino | 5 | Daughter | — | Massachusetts |
| 97 | Lucille Agostino | 3 | Daughter | — | Massachusetts |
| 98 | William Thomas | 41 | Head | Roofer | England |
| 99 | Christina Thomas | 45 | Wife-H | — | Canada English |
| 100 | Thelma Thomas | 13 | Daughter | — | Massachusetts |
Pedigree Summary
Charles + 2 siblings
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)