Add audited Dan Gross timeline enrichment
Add field photos + postwar landscape career from Mia Grosjean article
 
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== Biography ==
== Biography ==
In 1928, John attended Experimental College of the University of Wisconsin (one year).
In 1928, John attended Experimental College of the University of Wisconsin (one year).
He was photographed in the field at least three times (Signal Corps 237492, 245539, and 245540). After the war Jackson became a noted writer, publisher, instructor, and sketch artist in landscape design, influential in broadening attention to the vernacular landscape.


== Research notes ==
== Research notes ==
* 5th Army
* 5th Army
* Appears as number 4 on the [[Secret Heroes/First Class|First Class]] photo/chart.
* Appears as number 4 on the [[Secret Heroes/First Class|First Class]] photo/chart.
* Field photos: Signal Corps 237492, 245539, 245540; postwar landscape/vernacular design career (Mia Grosjean)
* Mia Grosjean gives vitals 1909–1996 (First Class chart also lists 1909–1996); infobox currently differs — review before changing


== Gallery ==
== Gallery ==
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== Sources ==
== Sources ==
* Dan Gross research archive (miscellaneous timeline-adjacent documents; not uploaded): ''Grosjean book or article.doc'' (Mia Grosjean, “Robert L. Grosjean and the Camp Ritchie Pioneers”)
* Camp Ritchie Museum, Inc. (The Ritchie History Museum), Classes 1–31 roster data
* Camp Ritchie Museum, Inc. (The Ritchie History Museum), Classes 1–31 roster data
* Dan Gross research spreadsheets, including original Excel timeline/roster work, combined with other research and records
* Dan Gross research spreadsheets, including original Excel timeline/roster work, combined with other research and records