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"Find a Grave", database, Find a Grave (http://www.findagrave.com : accessed 11 Octr 2015), memorial page for Bertha M Plunkett Minder (1877-1937), Find A Grave Memorial no. 22720566; citing Salisbury Cemetery, Salisbury, Sangamon, Illinois, USA; the accompanying photographs by Gary L Otten; created originally and maintained by Marge, and are materially informative, but do not provide a legible image of the inscribed data.
Shoud I say no tombstone has be set?
Sandy, your research notes
Sandy, your research notes are your research notes. You can add anything at all that you feel is useful to your research.
As auxiliary considerations:
There are three other technical issues that we might discuss:
All things considered, EE's citation to this Find A Grave page would use this pattern:
Find A Grave (http://www.findagrave.com : accessed 11 October 2015), memorial page 22720566, Bertha M. Plunkett Minder (1877–1937), created by "Marge"; citing Salisbury Cemetery, Salisbury, Sangamon, Illinois, USA. No gravestone exists; personal knowledge of Sandy Barnett, granddaughter of the deceased.