These records are unindexed and organized by GAR post. The microfilm (and digital images) are organized by county, and then by post. There is an "index" that appears in the county listing (there is one post, called "nulla" which then takes you to the actual "index."
That "index" tells you what post numbers are within what county, organized by counties. There are then two lists of posts sorted numerically on this "nulla" roll:
- A post listing--which starts at image 7
- Posts of the Permanent Iowa Department-which starts at image 21
David's entry was atypical in that it also contained a newspaper obituary for him clipped from an unknown paper. A quick look at other entries did not locate many that had supplemental information of this type.
|Undated and unsourced apparent obituary for David Aquille[sic] Newman|
appearing in his GAR membership record file
for Iowa GAR members.
Of course the information on the GAR membership card needs to be validated with other records, particularly David's service record and other military materials. There's nothing to suggest that the information on the card is wrong, just that errors can easily be made.
Note: There is a PDF file with information on Iowa GAR posts on this site from the Sons of Union Veterans of the Civil War (thanks to Keith R. for pointing this file out to me).