I'm your 1st cousin,our mothers are sisters. The name "Limtiaco" I believe is Chinese. Chinese names are short and come in 2 or 3s. Over time the name comes together and is pronounced as one, ex "Lim Ti Co" which now we pronounce it as Limtiaco. I received this information from a Chinese man, when he found out my middle name he immediately said that it was Chinese and explained at one time the name was separated. He also mentioned that there are families in China with our name (chinese) in the northern area. I guess it is a start.