I am not sure if your Joseph Monroe Tubbs is my Joseph Monroe Tubbs, but if so, here is a little information on mine.
Joseph Monroe Tubbs (12/27/1855 - 8/5/1928) born in TN and died in Grandin, Carter County, Missouri.He married a Malinda Freeman about 24 Jun 1877 in Carter County, Missouri.They had at least one child, Everett Tubbs (1878-1954) born in Shannon County, Missouri and died in Los Angeles, California.He married Ella Marie Abrams and had at least two children, Clyde E., and Raymond Tubbs.
My Joseph's parents and siblings were: Andrew Jackson Tubbs (1827 TN - 1882 MO) Martha McElroy (1836 TN - ? Stewart Co, TN) Joseph Monroe Tubbs Sarah Ann Tubbs b. 1865 Thomas Brown Tubbs b. 1867 John Baptist Tubbs b. 1872 Mary Jane Malindie Tubbs b. 1875 Everett Tubbs b. 1876
If this is your man and you need more information, just let me know.