Most Amish communities that were established in North America did not ultimately retain their Amish identity. The major division that resulted in the loss of identity of many Amish congregations occurred in the third quarter of the 19th century. The forming of factions worked its way out at different times at different places. The process was rather a "sorting out" than a split. Amish people are free to join another Amish congregation at another place that fits them best.  In the years after 1850, tensions rose within individual Amish congregations and between different Amish congregations. Between 1862 and 1878 yearly Dienerversammlungen (ministerial conferences) were held at different places, concerning how the Amish should deal with the tensions caused by the pressures of modern society. The meetings themselves were a progressive idea; for bishops to assemble to discuss uniformity was an unprecedented notion in the Amish church. By the first several meetings, the more traditionally minded bishops agreed to boycott the conferences.  The more progressive members, comprising approximately two-thirds of the group, became known by the name Amish Mennonite, and eventually united with the Mennonite Church, and other Mennonite denominations, mostly in the early 20th century. The more traditionally minded groups became known as the Old Order Amish. The Egli Amish had already started to withdraw from the Amish church in 1858. They soon drifted away from the old ways and changed their name to "Defenseless Mennonite" in 1908. Congregations that took no side in the division after 1862 formed the Conservative Amish Mennonite Conference in 1910 but dropped the word "Amish" from their name in 1957.  Because there was no division in Europe, the Amish congregations remaining there took the same way as the change-minded Amish Mennonites in North America and slowly merged with the Mennonites. The last Amish congregation in Germany to merge was the Ixheim Amish congregation, which merged with the neighboring Mennonite Church in 1937. Some Mennonite congregations, including most in Alsace, are descended directly from former Amish congregations.

Answer this question "Other groups name" by extracting the answer from the text above.
Amish Mennonite,