"founder" has been used, as far as I know, to record the name of people who "founded" (as "created") something, most of the time cities. So, during the work and exchanges I had with another french contributor (namely CyberEric) for this work on statues in Versailles Castle, we decided to used "founder_name" to record the name of arsitsts who melted the metal (most often bronze) statues. This will be doccumented soon by Eric in the wiki