The 1905 convention of the IWW was attended by 203 radical trade unionists representing 43 organizations, which covered a wide range of occupations. 70 delegates from 23 organizations were authorized to install their organizations in the industrial union which was to be founded at the convention. 72 additional delegates from the other 20 organizations were only present to take notes on the proceedings and report back. The other 61 delegates did not represent any organization. Only the delegates who were empowered to install an organization in the IWW were given votings rights proportional to the number of members of their organization - the other delegates had only one vote each.