Milton Harold Tidd (27 April 1890 - 19 November 1918) was the elder brother of Walter LeRoy Tidd (my great great grandfather). This undated picture most likely comes from about 1894, making Walter about 2 and Milton 4. Their younger brother Ken didn't arrive until 1900. Milton sure sported long, shiny hair.
Although undated, this photograph probably from around 1908-1910.
This somewhat mysterious photo reported shows Milton holding the as-yet-identified "Dorothy," sometime around 1915 to 1917. Milton sems to have been a rather dapper fellow. Milton died at the close of World War I.