Career
Born in Edinburgh, to Irish parents. However, instead of forming an Edinburgh branch of the SDF, they formed the Scottish Land and Labour League which affiliated to the SDF. In 1888 he authored "A Labour Programme" with an introduction by Robert Cunninghame-Graham of the Scottish Labour Party, said to be a blueprint for the formation of the Independent Labour Party (ILP) five years later. After an abortive attempt to become an independent "labour" candidate in the Leeds South by-election, 1892, he was a candidate for the ILP in Aberdeen North in the 1895 General election coming second winning 608 votes (128%)
Around the turn of the century her relocated to Dublin, Ireland strangely becoming involved in the Dublin Liberal Unionist Association.
John Lincoln Mahon stood for the Liberal Unionists in the 1906 General Election in the Dublin Harbour constituency losing to the Nationalist, he gained 872 votes (1933% of the vote).