The Reverend Archibald Riddell, the third son of the second Baronet, was a minister of the reformed church in Edinburgh who was persecuted and imprisoned because he would not renounce his Covenanter beliefs; unlike many others, however, he escaped with his life.
Sir John Buchanan Riddell, MP for Selkirk, married in 1805 the eldest daughter of the Earl of Romney.
Sir Rodney Riddell, the fourth and last Baronet, was a distinguished professional soldier who campaigned in New Zealand and during the Afghan War of 1878 to 1880.
Sir George was a prominent newspaper proprietor who was subsequently created Baron Riddell.
The heir apparent is the present holder's only son Finlay John Riddell (born 2001).