Individual Details

1 Jun 1880, Sugar Creek Twp., Poweshiek Co., IA, ED 198 pg 19;
Allen Vincent, 26 (1853-54), born PA both parents born PA, farming
America Vincent, wife, 21 (1858-59), born IA father born PA mother born OH
Thomas Jack Vincent, son, 1 (1878-79), born IA father born PA mother born IA.

1 Jun 1900, Madison Co., MT, ED 54 Sh 8B;
Allen Vincent, born Aug 1853, 46, widowed, born PA, both parents born PA, farmer, renting a farm
Tommy Vincent, son, born Feb 1879, 21, single, born IA father born PA mother born IA, farm laborer
Opal Vincent daughter, born July 1883, 16, born IA father born PA , mother born IA
Leroy Vincent, son, born Nov 1885, 14, born IA father born PA mother born IA
Alma Vincent, daughter, born Apr 1888, 12, born MT father born PA mother born IA
Flora Vincent, daughter, born Jul 1890, 9, born MT father born PA mother born IA
Walter Vincent, son, born Jan 1893, 7, born MT father born PA mother born IA.

15 Apr 1910, Meadow Creek Precinct, Madison Co., MT, ED 53 Sh 3B, family 67;
Thomas J. Vincent, head, 31 (1878-79), marriage one of 4/12, born IA father born PA mother born IA, farmer, could read and write and owned his farm with a mortgage
Maggie Vincent, wife, 20 (1889-90), marriage one of 4/12, born Canada both parents born Canada (English)
Allan Vincent, father, 56 (1853-54), marriage 1, born PA both parents born New York.

Note that cemetery book and photo of stone show Feb. 20, 1878 as date of birth, which differs from the 1879 date I had. If he was born in February, he should have been born in 1879 to have been age one in the 1880 census on June 1.

Also, Montana death index at ancestry.com has his death date as 20 Feb 1933, not 1938. Unknown if that is a typo or where the 1938 date came from.
Montana Death Index, 1907-2002
Name: Thomas J Vincent
Age: 54
Estimated birth year: 1879
Gender: Male
Death Date: 20 Feb 1933
Index Number: Gal 878

Source: Montana Office of Vital Statistics

Birth	20 Feb 1879	Searsboro, Poweshiek Co., Iowa
Census	1 Jun 1880	Sugar Creek Twp., Poweshiek Co., Iowa
Census	1885	IA State Census, Sugar Creek, Poweshiek County; Thomas J. Vincent, 5 (1879-80), born Poweshiek County.
Census	1 Jun 1900	Madison Co., Montana
Marriage	6 Oct 1909	Virginia City, Madison Co., MT - Margaret CLARK
Census	15 Apr 1910	Meadow Creek, Madison Co., Montana
Military	12 Sep 1918	WWI draft registration at ancestry.com. Thomas Jackson Vincent, born
Census	1 Jan 1920	Hot Springs Twp., Madison Co., MT, ED 136 printed pg 224; Thomas J., head, 40 (1879-80), born IA father born PA mother born IA.
Census	1 Apr 1930	Belgrade, Gallatin Co., MT, ED 16-18 pg 3A, printed pg 103; Thomas J., head, 51 (1878-79), 31 at first marriage, born IA both parents born IA, farmer, rents home.
Death	20 Feb 1938
Burial		McAllister, Madison Co., Montana
Reference No		210

Spouse	Margaret CLARK (1890 - 1930)
Child	Harry C. VINCENT (1915 - 1971)
Child	Herman J. VINCENT (1916 - 1988)
Child	Thomas E. VINCENT (1918 - 2005)
Child	Living

Father	Allen VINCENT (1853 - 1920)
Mother	America Jennie MCDOWELL (1858 - 1895)
Sibling	Violet Lydia VINCENT (1881 - 1919)
Sibling	Opal Mae VINCENT (1883 - 1964)
Sibling	Leroy (Lee) N. VINCENT (1885 - 1952)
Sibling	Alma Clara (Allie) VINCENT (1888 - 1982)
Sibling	Flora Belle VINCENT (1890 - 1960)
Sibling	Walter Scott VINCENT (1893 - 1964)
Sibling	Alan Robert VINCENT (1894 - 1918)