Question How to add a business?

My family owned a travel agency and multiple family members worked there. I have various photos, newspaper clippings, websites, etc for it. How to I add the business and its photos, etc? And then how do I add it to each individual?

Record their occupation with the "Agency" field filled with the name of the family business.
Connect these facts/events to a source (or multiple)
You can also add relations like "employer/employee" to note a son worked in his fathers business.
You can make use of a Shared Note to connect the individuals that worked there as well.

GEDCOM is a genealogy application and therefore not perfectly suited for family history.

HOWEVER, you can tackle this several ways.

1) As noted by Bert, use the OCCU tag (occupation) to indicate their work as a “Travel Agent” and create a source with images and a shared note with information about the agency.

2) Create a PROP tag (property/possession) and indicate the agency and a source with images and notes.
1 PROP xyz Agency

3) Create a user defined "fact" with sources, notes and images such as:
4) Use any of the above and Instead of using a source and note use a _LOC record with images and text.

I use option #4 for information about all kinds of places, including towns, farms, businesses, cemeteries that the individuals in my database were located. In a _LOC record you can embed images and inline notes.

This post seems to violate our rules because it has nothing to do with webtrees and contains unwanted advertising.

Asking how to put advertising on webtrees might be a bad idea, but it is not the same as putting the advertising on this forum.