Pearse appears to have been a business man who, like John Phillipson, for some time combined the position of a clerk in the navy office with that of a South Sea director. Returned unopposed for Weymouth, his native town, he vacated his seat on being appointed a commissioner of the navy in 1726 but did not stand at the ensuing by-election. Reelected in 1727 after a contest, he was unopposed in 1734, voting with the Government in every recorded division.
When in 1740 George Bubb Dodington set up four opposition candidates at Weymouth, Walpole gave Pearse and John Olmius ‘the strongest assurance of my friendship and support against everybody that shall think fit to oppose those gentlemen that deserve so very well of all the King’s servants’.
Pearse died, still in possession of his place, 3 Apr. 1743.
