... Letter to Mr Martell Director of the Schoo of Mines Ballarat from W.B Hirt......W.B. Hirt...Handwritten letter on lined paper to Mr Martell, director of School of Mines Ballarat from Mr W.B Hirt tending his resignation...Barker Library (top floor) Mount Helen goldfields School of Mines Ballarat is a predecessor of Federation University Mr Martell School of Mines Ballarat W.B. Hirt Resignation Hirt Handwritten letter on lined paper to Mr Martell, director of School of Mines Ballarat from Mr W.B Hirt tending his resignation Letter to Mr Martell Director of the Schoo of Mines Ballarat from W.B Hirt Letter ...