Here are a few tidbits I found that look like good possible leads.
Texas Marriage Collection, 1814-1909 and 1966-2002 Name: Joseph W. Allen Gender: Male Marriage Date: 27 Feb 1873 Spouse: Josephine V. Alexander Marriage city: Delta Marriage State: Texas
Source: Texas Marriages, 1851-1900 ***I checked for a Delta Co, Texas on the 1870 census and nothing came up....there is Delta Co, Texas for the 1880 census. My resource book says Delta County Texas was formed in 12870....must have been after the census was taken.
She is listed on the 1900 TX, Parker Co census as Josephine V. Allen.Although it is indexed as Josephine W., it clearly is a V on the census page.Above Marriage record is the right time frame for their first born......worth checking out.
Son Warren & then Joseph W. on the 1900 census appear to be the same son.He fills out his WW1 Draft Registration as Joseph Warren Allen.....wife Ella.
World War I Draft Registration Cards, 1917-1918 Name: Sterling Price Allen County: Ellis State: Texas Birth Date: 26 Nov 1873 Race: White Nearest relative: Florence Allen, wife signed: sept 1918
I found Sterling & wife Florence in: 1900 TX, Parker Co 1910 TX, Erath Co 1918 WW1 registration...TX, Ellis County