You've provided a lot of great information to use in genealogical research. Information about Morton appears to be readily available; I recommend you use FamilySearch (Familysearch.org). The site requires registration but it is otherwise free.
Census records are available as is a death record (Jan 10, 1888 Northfield Township, Rice County, MN) linked below
Good luck with your searching.
Morton died 10 Jan 1888 in Northfield Twp, Rice Co, MN.
Morton's parents were Asa (or Esa) D. Howe (1816-1863) and Clarilla (or something similar) A. Bacon, who were married in Ashtabula Co, OH in 1838. Ohio, County Marriages, 1789-2016; https://familysearch.org/ark:/61903/3:1:33SQ-G5YY-S9R?cc=1614804&wc=ZRQK-2NL%3A121347501%2C121419501
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Found Death Record for Morton Asa Howe on familysearch.org
family search is a free website, you just need to register to search.
After registering click on this
Also, There is a family tree for your Howe family on familysearch.org.
Looks like you might be a Mayflower descendant