Half Of Mackay is a thoroughbred horse born in Australia in 2005. Race horse Half Of Mackay is by Half Hennessy (AUS) out of Secret Polish (AUS) , trained by Dallas Hodge. Half Of Mackay form is available here. Owned by P A & MRS L J MAGUIRE, J M & MRS H J CARROLL, P G BARTOLO, G, A & D DREGER, MRS K A RYAN & MRS J D DWYER..