Sorry, I said Colbert, but meant Lauderdale County. Everyone else in his family has huge tombstones, except Thomas J., doesn't make sense.
This is his brother buried in Florence Cemetery, Lauderdale Co AL: If he's not here, perhaps in Nashville? But why no stone?
http://findagrave.com/cgi-bin/fg.cgi?page=gr&GRid=38568577
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This is his equally famous brother, Ephraim H. Foster, Buried in Nashville:
http://findagrave.com/cgi-bin/fg.cgi?page=gr&GRid=8008059
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Another brother buried in Nashville:
http://findagrave.com/cgi-bin/fg.cgi?page=gr&GRid=8973444