The Russellite group were the followers of Thomas Wallace Russell, an Irish political leader of the early twentieth century.
[1] Dod's Parliamentary Companion regarded them as ex-Liberal Unionists who had joined the Liberal Party, although Russell's two Parliamentary colleagues had been first elected as Independent Unionists and they did not seek re-election as Liberals in 1906.
Craig's compilation of election results for 1906 includes them with the Liberals, but gives them a footnote.
Glendinning was regarded by Dod's Parliamentary Companion as an Independent Liberal.
In the January 1910 general election, Glendinning retired and Russell lost his seat as a Liberal candidate.