- Father: John Thomas TREGOWETH
- Mother: Mary NELSEN
- Birth: 13 SEP 1897, Woodside, South Australia
- Military Enlistment: 15 JAN 1916, Adelaide, South Australia
- Military Award: 6 MAY 1918
- Military Discharge: 3 JUN 1919
- Death: 9 FEB 1947
- Partnership with: (Unknown)
Ancestors of Frederick Joseph Arthur TREGOWETH
/-Thomas TREGOWETH
/-Thomas TREGOWETH
| \-Elizabeth NETTLE
/-John Thomas TREGOWETH
| \-Mary CARTER
Frederick Joseph Arthur TREGOWETH
| /-John NELSEN
\-Mary NELSEN
| /-Edward WATSON
| /-Gilbert WATSON
| | \-Florence
| /-Gilbert WATSON
| | \-Elizabeth FIRMAGE
| /-John WATSON
| | \-Frances TUCK
\-Elizabeth WATSON
| /-John RILEY
\-Maria RILEY
| /-William QUEENBORROW
| /-William QUEENBOROUGH
| | | /-James BALDWER
| | \-Mary BALDWER
| | \-Mary
\-Elizabeth QUEENBOROUGH
| /-John ROTHERWELL
\-Anne ROTHERWELL
\-Mary
Descendants of Frederick Joseph Arthur TREGOWETH
1 Frederick Joseph Arthur TREGOWETH
=(Unknown)
2 Patricia Mary TREGOWETH
=Robin Noel KENT Marriage: 24 MAR 1951