Looking for Donald McPHEE marriage to Catharine McMILLAN before 1877. Or birth of dau. Mary Catharine abt. 1877

Also for marriage license of Ellen M(a)cDONNELL to Nelson E. OSMUN before birth of first son 17 Jul 1885. Their sons baptised in Ottawa, Ontario.

He married in Alexandria, Ont. 4 Nov 1896 Mary Catharine d/o Donald McPHEE and Catharine McMILLAN. She raised the three sons of Ellen's who lived.

Any relationship between Mary Catherine McPHEE and Ellen McDONNELL?

Please tell me if you know anything