His wife, Sarah Ophelia Pearce, applied for a Confederate Widow's Pension. This file may contain information regarding his death, and/or other interesting information about Lt. Bennett. Her name appears in the pension index as follows:

Applicant Information & Name Variations:

BENNETT, SARAH OPHELIA (PEARCE)
Parish: AVOYELLES

Soldier Information & Variations:

BENNETT, M.
State: LA
Branch: ARTILLERY
Unit: 2ND BATTERY (FIELD)
Company: 3RD CORP.

BENNETT, MANNSEL
BENNETT, MANUEL
BENNETT, MAUNSEL
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There is also a book you may be interested in:

"Boone's Louisiana Battery : A History & Roster" by Arthur W. Bergeron, Jr., and Lawrence L. Hewitt.

There is a copy of this book at the State Library of Louisiana in Baton Rouge.

Best Regards--