Squire - Jim has contact(s) in the Phils' Clearwater offices, who provide him with transactions information. His signed dates don't always agree with what eventually gets reported publicly (probably due to delays in the Commissioner's Office), but he's reliable as to names, and close on the dates. I'll update my list, and be on the lookout for updates to old mlb.com transactions pages.
Avila, a Venezuelan, signed on 11/27, per this Instagram posting:
Loyo, Reyes, and Zuniga, all Mexican pitchers, signed officially on 1/4/20, per this report:
Erick Barria, a Panamanian shortstop, apparently signed 2/7, per the linked tweet:
Gabriel Tirado is a Venezuelan outfielder who attended the February 2019 MLB Trainer Partnership showcase. Tirado apparently committed to the Phils several months ago - don't have a signing date confirmed: