I purchased this pair of photos from the same dealer.The earlier studio portrait of a middle-aged woman taken by Lewis, Ellenville, NY, is identified on the back of the mount:
"Mary Battershall Donaldson about 1880-1885"
The later photo of an elderly couple is identified on the back of the mount:
"James W Donaldson Mary F. (Battershall) Donaldson 1908"
The couple is listed in the 1870 Census data for Wawarsing, Ulster Co., NY; the 1880 Census data for Ellenville (resided at 102 Canal Street), Ulster Co., NY; and the 1900 Census data for Ellenville (resided on Center Street), Ulster Co., NY. James W. Donaldson, born Jan 1835 in NY, was a merchant/wholesale grocer. In about 1869, he married Mary F. Battershall, born Mar 1836 in NY. The couple had a daughter, Jessie B. Donaldson, born Apr 1974 in NY, who married C. Dwight, born Jan 1873 in Ellenville, Ulster Co., NY.