On October 11, 1835, Richardson Royster Royall dispatched Foster to retrieve 800 pounds of lead reported to be at William Stafford's plantation. Foster later helped supply the army with meat and furnished food and escort for his family and neighbors during the Runaway Scrape. In 1836 he made a trip back to Mississippi, then returned to Texas to establish permanent residence in Fort Bend County. In December 1845 he signed a proclamation at Richmond commending Sam Houston for his work for the annexation of Texas and inviting him to dinner at Richmond. As a fellow Mississippian, Foster, in August 1865 wrote David G. Burnet requesting him to go to Washington, D.C., to ask President Andrew Johnson to release Jefferson Davis from prison. On August 18, 1878, Foster died in Fort Bend County at the home of his daughter, Mrs. Mary L. Blakely.
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