Did Dalrymple-Hamilton's family remain in naval service?

Did Dalrymple-Hamilton have descendants serving in the Royal Navy?

His son became a Royal Navy captain, but a later serving descendant is not identified with certainty.

Dalrymple-Hamilton's son reached captain in the Royal Navy and served as executive officer of Britannia. The son later had two sons of his own and became vice lord lieutenant of Arran. Other relatives served as Army officers, showing the family's broader military connections. Whether a later descendant was serving in the Royal Navy at the time of the talk remains uncertain.