Shirlea: I wrote my last comment at about the same time that you wrote your comment about the source where you found Heinrich (which is a book I had not seen before). I think you are referring to the entry for Heinrich Stirf that appears about 8 lines from the bottom of column 1 on page 306 of the book (compiled by Egle in 1892) that you cited.
There are interesting challenges here. There are some large differences between the list in the Egle book and the list in the Strassenburger book (referred to here as Pennsylvania German Pioneers). Both of these are supposedly transcripts of the same list of signatures, which is reproduced in Volume 2 of Strassbenburger, but it is difficult to recognize them as the same list. Both transcripts were (presumably) produced by people with expertise on interpreting the handwriting (not dilettantes like me!). Seeing that (for example) the transcript in Vol. 1 of Strassenburger does not include a name that even resembles Heinrich Stirf, it is unlikely that amateurs like us would be able to pick that name out from the signatures in Vol. 2 of Strassenburger.
I notice that the Strassenburger Vol. 1 list is arranged in columns that list the names in top-to-bottom order, while the transcribed list in the Egle book is arranged in rows. Thus, for example, the first two names on the list, Christoffel Graff and his son Christoph(el) Graff Junior, are the first two names in vertical order in the first column of the transcribed list in Strassenburger, but are displayed next to each other at the top of the two columns that appear on page 305 of Egle.
From the list in Egle, I would expect that the name Heinrich Stirf would be on the signature list below Casper Kessler, Johannes Olgeyer, and Hans Jacob Stötz, and above Hans Nordhoff, Hans Geo. Kern, and Hans Philip Rieber. In the last column of the transcribed list in Strassburger, I find a sequence that appears to match, consisting of the names Caspar Zesseler, Johannes Schnitzer, Johannes Algeyer, Hans Jacob Götz, Andreas Schnelle, Hinrich Riess, Hans Norffkoh(?), Hans George Kern, and Jerg Philip Rieber. I cannot explain why Johannes Schnitzer and Andreas Schnelle are not also on the Egle list (maybe Egle worked with a different signature list; sometimes new arrivals signed several lists), but I conclude that Strassenburger got Hinrich Riess out of a signature by the person that Egle interpreted as Heinrich Stirf. This is the 7th signature in the second column on page 485 of Strassenburger volume 2. I read that signature as Hinrich ?iess -- I don't know what the ? is, but I do not think it is an R. Your mileage may vary.
I see no benefit from citing that signature list as a stand-alone source. Not only is it unreasonable to ask our cousins and grandchildren to recognize his signature there, but it is not necessarily clear that the signature is by the same man as Johann Heinrich Stieff (however, Hinrich Stieff is a plausible interpretation of the signature). The profile for this man should indicate that he is supposed to have immigrated on the Fane (cite the source that proposed or stated this), cite both the Egle and Strassburger transcriptions of the name on the list that is thought to be his, and cite the page of Strassburger volume 2 where the signature list appears, with an indication of where on the page his name appears. If you are feeling sufficiently ambitious, you could extract the image of that signature from the book page and upload it to WikiTree as an image to illustrate the profile and the source citation.
