Note: Research indicates that a similarly named individual, Captain William Heyser (sometimes spelled Keyser), commanded a company in the German Battalion, but this is a separate historical figure. The subject of this write-up is the Private William Keyser of the Virginia Continental line, as detailed in the Pension App W3427.

His service lasted 6 years, combining two consecutive three-year enlistments. Post-War Life and Legacy

He was inoculated for smallpox at Hampton, New Jersey.