I am struggling with identifying the original source for Pennsylvania land warrant loose papers that are available on FamilySearch, microfilmed in Harrisburg, PA, in 1975. https://www.familysearch.org/search/catalog/99197
The notes for "Application for warrants, 1734-1865" from the Pennsylvania Land Office indicate these images are a "microreproduction of original ms." No reference to the Pennsylvania State Archives record group is provided. The microfilms do include a title card showing "PENN - 00009 Roll No. [various numbers]" and another showing "Applications for Warrants[,] Loose Papers Plastic Covered Copy."
The Pennsylvania State Archives preferred citations should include "item, series title, series number, Record or Manuscript Group title, RG or MG number, Pennsylvania State Archives, Harrisburg," none of which is available on FamilySearch. I believe I have identified the original source information on the Pennsylvania State Archives website. I am unsure how to confirm this using the limited info from the microfilm.
The description for "Applications for Warrants, 1734-1952" states that this series includes laminated, original loose applications, which is consistent with the FamilySearch microfilm series. When I drill down and view specific cartons within this series, the notes do include a microfilm reference. For example, Carton 2, item # A1000970, for the time period 9 August 1750-29 December 1753 is available on microfilm LO 7.5-20: 28-101.
Am I spinning my wheels? Is there a better way to confirm I have the correct original source?