In 1749 Innes was established as a London merchant, trading with the West Indies where he had extensive family connexions.
In 1774 he was returned at Ilchester on the interest of Thomas Lockyer. There is no record of his having voted in the House, but on 8 Nov. 1775 he spoke at length in a debate on the army estimates.
was recommended by some right honourable gentlemen who tell you the Declaratory Act (an Act passed while they themselves were in office) means nothing. That Act certainly meant something at the time it was made; the intention of it must at least have been a deception on this country to palliate the disgrace of repealing the Stamp Act.
Those advocates for a paltry and inglorious peace seem to depend too much on their rhetorical abilities; they wantonly sport with the constitution of this great nation, merely with a view to overturn the present ministry, under the pretence of rescuing their country from imminent danger ... Let the Americans trust them, if they will; but ... it would be the height of folly in this country to put confidence in such men a second time.
Innes is reported to have made one other speech, 13 Nov. 1775,
The defeated candidates at Ilchester petitioned against Innes and his fellow Member Peregrine Cust, and on 4 Dec. the election was declared void. Innes did not stand again for Parliament.
He died 14 Jan. 1795.
