Do you add the names of the people named in business ads?

Debklind

US—City Directories, 1866–1940 [Part A][MQFN-CDQ]

Do you index the names of the people in the business ads?

erutherford

Ads are not indexed. From Project Instruction/What To Index:

Do not index tax lists, lists of elected officials, table of contents, maps, advertisements, locality histories, voter and census records, or business directories. 

Julia Szent-Györgyi

From the third example in the Project Instructions (https://www.familysearch.org/indexing/images?fs-cache=true&key=idx-deepzoom-image&image=a84aa079-85db-4c76-9587-27263de28eeb): "Note: Do not index the advertisements around the borders or outlined in blocks, of the image." I interpret that to mean that for example W.E. Rigg (from the Mutual Life Insurance ad on the right-hand edge) does not get indexed.

However, J H Aydelott, C J Rohwitz, Fred Montmorency, and O E Pearson (from the entry for the Chicago, Burlington & Quincy RR, second column of left-hand page) should all be indexed.

Ditto for Spencer L Parker and Albert N Kolb (from the following two entries).