Yes it is the right family. Im about 95% sure the babies would have been between John Richard "Jack" b.Jul 1880 and Nora Frances b.Feb 1887. From what I gather from old letters they lived in the deadwood/whitewood SD area after Jack was born until they moved to Wyoming right around the time Nora was born. The Farris where ranchers, so they traveled between the wyoming,south dakota, and montana frequently doing jobs for different ranches. Wow 8 of 11 that means there is one more baby out there, besides the two that I heard of. Because the next child to die was Anna Farris-Thompson in 1920 shortly after giving birth from a carbunkle on her back.