There is not a competitor for this biography but a companion would be my Arthur Cayley: Mathematician Laureate of the Victorian Age, Johns Hopkins University Press (2007). This biography takes its place alongside biographies of scientists and mathematicians, in which I have recently been involved. Particularly with (a) A prodigy of Universal Genius: Robert Leslie Ellis, 1817-1859 (Springer 2020), (b) The Cambridge Companion to John Herschel, (Cambridge University Press 2024), and an upcoming biography of William Whewell (1794-1866). Whereas I was an author for the mathematical chapters in these books, I am the sole author in this Kirkman biography.
