Thank you jorose and shellyesq for this information. So in 1891+92 both Albert E Skyne and Mary A Ward were living at #346 East 42nd Street, NY, NY and Ernest A Skyne was living there in 1897.
In 1903 I have Richard J Ward (another nephew of Mary Anne Ward) living at what looks to be #271 West 113th Street, New York, NY and then in 1905 he and his family are in Indianapolis, Marion, Indiana at 21E Market h, The Pierson. In 1906 a Miss M Ward is at #215 West 121st Street, New York, NY. I cannot find Albert E Skyne anywhere after 1892. Six members of the Ward/Skyne families died, in Dublin, between 1878 and 1885, including Ernest and Albert’s parents. Some inheritance was left to the unmarried Mary Anne Ward by her father and sister Ellen Skyne and I think that she must have taken the two teenage Skyne sons and her younger sister Maria to New York in 1887. Perhaps Albert E Skyne died in the early 1890’s. I am wondering if he was a cricket player like his brother. Richard J Ward and his family immigrated to New York in 1893.
I am waiting for two death certificates to arrive from Dublin and these may help me with my search.