Career
Wallop was commissioned as a lieutenant and captain in the 3rd Regiment of Foot Guards in 1762. George Grenville recommended him to King George, but the King declined to interfere with his brother"s appointments to that office. However, on 24 August 1765, Wallop was appointed a Royal Groom of the Bedchamber in place of Henry Seymour, an office he held until 1771.
On 29 March 1768, he was promoted to a captaincy in the 41st Regiment of Foot.
He had little recorded Parliamentary activity, although he was set down as favoring the Royal Marriages Acting 1772 (but absent for the vote) and in favor of the North Ministry before the 1774 election. However, he did not stand for Parliament again and died a bachelor in August 1794.