Valley History You don’t want to get close to strangers and breathe on them after you eat a 1015Y onion, or any onion for that matter, but man, they are good. The best part: they were developed right here in the Rio Grande Valley. In fact, the 1015 onion is named after FM (farm to market) 1015 in Weslaco, the road on which sits part of the Texas AgriLife Research agency, which developed the huge sweet onion hybrid in the 1980s. (Actually, that may not be entirely true – see end of this column.) Onions, by the way, pardon my breath, is Texas’ ...