sentences:  He later served in the first two administrations of the Earl of Derby as a Lord-in-waiting (government whip in the House of Lords) in 1852 and from 1858 to 1859.Between 1845 and 1892 he also held the honorary post of Lord Lieutenant of Hertfordshire, in succession to his father.Grimston owned property in Jamaica, and following the abolition of the slave trade, between 1836 and 1837 he was associated with claims of £7,359 18s 4d in compensation for the loss of 376 slaves.