Individual Details

John doesn't appear in a census with the family and Earl Higginbotham had given him a birth of about 1890 - I believe he is instead this John, born about 1881:

1910 Census. Justice Prec 4, Cooke Co, TX, Hh 72
John R. Montgomery, 29, married 9 years, b. TX, father b. MS, mother b. LA
Annie, wife, 31, married twice, this time for 9 years, has had 5 children - 4 are living
Josie, dau, 8
Bessie, dau, 5
Florence, dau, 3
Robert, son, 8 months
James A., brother, age 22

Birth	1881	Texas
Death		Florence, Fremont County, Colorado

Father	William Wesley Montgomery (1857 - 1900)
Mother	Martha Elizabeth Higginbotham (1857 - 1931)
Sibling	Alice F. Montgomery (1878 - 1955)
Sibling	Louise Myrtle Montgomery (1884 - )
Sibling	James Allen Montgomery (1888 - 1963)
Sibling	Robert Gibson Montgomery (1893 - 1964)
Sibling	Jess Oliver Montgomery (1894 - 1950)
Sibling	Mary Leona Montgomery (1896 - 1974)