Yes, this is the John Herve Prosper we share. I'll give you all the information I have on him:
John Herve Prosper, b 1857 New York married Eliza Maynard abt. 1878 in Sturbridge, MA Eliza was b abt 1858 in Canada, immigrated in 1867 naturalized in 1882.
Had child Henry John (Abram) Prosper, b. Jan 1880 Sturbridge married Mary Ellen McGinn b. 1882 in RI, daughter of Irish immigrants. John Herve died (date unknown). Eliza re-married to a Frederick Brown of CT. Sometime a little before or after John's death they moved to Fall River, MA where Eliza died.
That is all the information I have at the moment...