Thomas Robert Malthus
Otter was born on 28 May 1805 as the eldest son of The Right Reverend William Otter, Bishop of Chicester and his wife, Nancy Sadleir (née Bruère) Otter. Among his siblings were Sophia Otter (wife of the Rev. Henry Malthus, a son of Thomas Robert Malthus), Caroline Charlotte Otter (wife of John Romilly, 1st Baron Romilly), Maria Otter (wife of Sir William Milbourne James, Lord Justice of Appeal), and Amelia Harriet Otter (wife of Edward Strutt, 1st Baron Belper).