He is not Heinrich Eggers, 33, who married Doris Melitz in 1875 in Jackson Co. They are in Scott County, Iowa, in 1880 w/ 3 children
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He is not George Heinrich Eggers who married in Jackson Co Iowa in 1894. he was 26
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I didn't find death records for him or Margaret in Jackson County, Iowa. Or immigration records into Canada or New York. He might have gone there to work after she died, since:
There's an interesting entry on the 1880 in Sabula, Jackson, Iowa
Henry Eggers, 62, widower, b. Holstein, 'works in house'
The line actually says "works in S house" which could be a slaughtering house, since
"In the late 19th century ... The thriving community also supported a large hog slaughtering industry. "
https://en.wikipedia.org/wiki/Sabula,_IowaThere were other men on the page with the same occupation.
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As Gadget found a number of Heinrich Eggers in Holstein, I found a few Eggers families in Jackson County, Iowa. He might have had family there, or it was a common name. I didn't look at birthplaces for the Eggers in that county, which might have helped decide that.