Check out the Facebook site formerly known as the Jewish History Hub.  This site includes dialog on current and historic events within N.E. Ohio’s Jewish community.   
Their new name is Northeast Ohio Jewish History. 
  https://www.facebook.com/groups/232302317308464/

Dr. Arnold Berger's web site Cleveland Jewish History is an top of the line source for information on many aspects of Jewish Life in Cleveland. Arnie, as we know him provides the background of many leaders that shaped the community. 

http://www.clevelandjewishhistory.net

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The City of Cleveland's Landmark's Commission  web site includes a list of Architects that I have found to be of value. Did you know that both the Fir Street and Baxter Street Cemeteries are listed as a Landmark in Cleveland?

http://planning.city.cleveland.oh.us/landmark/

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Cleveland neighborhood is one of the best site when looking for historic information from a wide variety of subjects.

​https://sites.google.com/site/clevelandanditsneighborhoods/home/
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Cleveland State University Special Collections Library under the direction of William Barrow is an excellent source for photographs and historic documents. In addition to to the work of many of Cleveland's scholars that focus on the Northeast Ohio's history. 
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http://www.clevelandmemory.org/exhibits/