His cousins Sir John Kotelawala and Dudley Senanayake, became Prime Ministers and Junius Richard Jayewardene became the President of Sri Lanka.
[3] Reaching the rank of Major, he saw active service in the World War II.
[4] A founding member of the United National Party, Jayewardene was first elected to parliament in 1948, as a result of a by-election in the Colombo South electorate in November that year, following the dismissal of the sitting member, Reginald Abraham de Mel.
[7] Jayewardena was appointed as parliamentary secretary to the Minister for Labour in the First Dudley Senanayake cabinet.
His brother-in-law who had married his sister Margie was A. F. Wijemanne, who served as the Minister of Justice in the late 1960s.