His barptism transcribed by Berks FHS:

First name(s)        Thomas
Last name            Sheen
Baptism year         1774
Baptism date         01 Apr 1774
Place                Little Wittenham
Church               St Peter
Relationship         son of
Father's first name  John
Father's last name   Sheen
Mother's first name  Elizabeth
Mother's last name   Sheen
County               Berkshire
Country              England
Record set           Berkshire Baptisms Index
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55 deaths found in England, none in Bucks.  He could be almosts any of these.  So unknown.
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