I would try this first I would contact the library at White Pigeon. According to your dates this person died as a baby before reaching the age of 1 year.
If the family was well known in that community they may have put a death notice in the paper which would give the cemetery name.
Also the library at White Pigeon might be able to tell you if there are any family history societyies that could help you. White Pigeon is located in St Joseph County and they do have a genealogical society.
However you should 1st contact the library there, thier contact information is as follows;
White Pigeon Township Library 102 North Kalamazoo Street P.O. Box 399 White Pigeon Michigan 49099 (269) 483 - 7409
The White Pigeon Library does have a room which is for family history research.