Limusishiden and his Mongghul wife, Jugui, visited the Datong area from the 23-25 January, 2001. They visited two villages that were thought to be the only places where a few Mongghul still spoke Mongghul in Datong at the time. One was Songbu Village (only one old man and woman were able to speak Mongghul) and another was Tuhun Village. Limusishiden and Jugui estimated at that time that only about ten old Mongghul could speak Mongghul well in the village. Most Datong Mongghul moved to Datong from Huzhu at least a century ago. Each year, on Mourning Day, most Datong Mongghul kowtow in the direction of Huzhu in memory of their Huzhu ancestors before they burn incense. 在二零零一年一月份的二十三至二十五日，李穆斯史登和他的土族妻子桔桂拜访了大通。他们拜访了在大通认为是那时期只有很少的土族人仍然会说土族语的两个村庄。一个村庄是松布（只有一个老爷爷和老奶奶会说土族语），而另一个是土官村。李穆斯史登和桔桂估计那段时间在大通大概只有十个土族老人会说土族语。 大多数的大通土族至少是在一个世纪以前从互助迁移到大通。每年的哀悼日烧香前大通的土族往互助（他们记忆中的互助祖先）方向磕头。