John Donohoe FitzGerald, Dictionary of National Biography… (1892)
“ For the remainder of his life Keogh was the subject of constant attack by the home-rule party. In 1878 his health began to fail, and he died at Bingen-on-the-Rhine on 30 Sept. of that year. During the greater part of his tenure of office he had been one of the most conspicuous figures on the Irish bench. Genial and good-natured, he was popular in private life, where his ready wit and conversational powers made him a most agreeable companion ”
