When I last looked at the Guerrero-Leyva connections in January, I considered the possibility this mystery branch could be connected through Alejandro Portillo, a half-brother or potentially a full brother of my 2nd-great-grandfather Manuel Portillo. Using the approach from successfully knocking down the brick wall on Bridget Gannon, I've been building a genetic map for the Portillo side and chromosome mapping on DNAPainter.
There are potential multiple relationships, previously missed half-relationships and some gaps in the records that require careful attention. I need to look again at Escolastico Leyva and Flora Escovar in the records, and for additional DNA matches descending from them. There's also some new to me options on Gedmatch for a couple of matches to the Guerrero-Leyvas, Portillo and Diaz sides.
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