Here is the 1900 US Census for James H Emery, son of Olive (Jacobs) and Henry Emery.
James was living in Blandinsville, McDonough county, Illinois with wife Rhoda and sons Otto and Roscoe.
Last year I had posted the census for my great great great grandparents, Sarah (Dwire) and David W Emery.
I've not been able to locate a census for Olive and Henry's daughter, Sarah Ferman. Sarah passed away in Blandinsville two years after the 1900 Census but having looked through the entire census for that village, she and her family appear to have been missed.