Where was Tom Sawyer (1917) filmed?
1917 comedy-drama film directed by William Desmond Taylor
Tom Sawyer (1917) was filmed in Mississippi River and Hannibal, 2 places named in its Wikipedia article, in the United States. Wikidata records no filming location for it at all, so the article is the only recorded source. Each place says where its claim comes from.
Places per Wikipedia's article
The Wikipedia article names 2 places. Each links to the sentence that says so.

