Best way to purge person table that will include all associated tables

I am in the process of migrating our 6.3 IAM product to 8.1, but after making significant schema mods to the person table and I want to clean out the 300 test records.

Is there  away to do this as a batch process so that I can ensure that all associated table's records will get cleared out as well. I know about the Delete feature in Object Browser I was hoping there was a straight SQL route.