Although I am not related to these families, I was born in St. Johns (!), but now live in Arizona, long story about how my Grandmother Nellie Page (maiden name, who was b. near Elsie, Clinton County, MI) came to Arizona in the 1940's...
I've been around Clinton County in person off and on visiting for the very purpose of walking through cemeteries and visiting the Elsie Historical Society.
You might be interested in this website: http://www.dewittlibrary.com/CCHS/http://www.dewittlibrary.com/CCHS/For example, click on "Marriages" and look up "Losey" and, well, you'll find some answers.Once you do that, it will not be necessary for me to guide you further.
I have some (paper) copies of cemetery transcriptions, mostly in the Elsie and Ovid areas, so if you need further information there, please let me know and I can help.Most likely, however, it seems that your family hung around in St. Johns.If you run across any Mead or Page surnames in your ancestry, please let me know.
Check out the "Photos" link and surname "P" and you'll see my ancestors right there at the top, all three photos of pages, Grandmother Nellie right in the middle.
Best regards and happy hunting.
Jack Sheldon, Jr., CPA Mesa, AZ Sheldon Family Assn. Life Member / Asst. Genealogist