In this research, we shall explore partition functions related to identities of Euler type,
mainly focusing on identities due to P. A. MacMahon and M. V. Subbarao. We will
give a new bijection for one of the partition theorems due to MacMahon and provide a
generalisation of a partition identity due to Subbarao. We will further deduce parity formulas
for various related partition functions. Our approach is via generating functions
and bijective mappings.