24-gun 6th rate frigate

• Launched in 1748.
• Sold in 1784.
• Nelson served in her as an able seaman, then as a midshipman, Oct 1773 - March 1776, under Capt. George Farmer.

Career:

• 8th January 1761: Under Capt. James Smith, departed from Spithead to carry astronomers to Sumatra to observe the transit of the sun by Venus on 6th June.  But on 11th January she was attacked by a French frigate and a fierce battle ensued, leading to the death of 11 of the Seahorse's men.  She returned to Plymouth to refit, and departed again on 4th February, this time escorted by the 70-gun Dorsetshire, but by now the astronomers would arrive at their destination too late.
• November 1773: Under Capt. Farmer, Seahorse sailed from Spithead to Madras together with the Salisbury.  Nelson had joined Seahorse on 28th October.  Nelson fell ill in March 1776, and left the Seahorse to return home.