The collection contains some personal and family materials related to Suderman’s education, and many family letters are part of the extensive correspondence primarily related to his teaching and research. However, there is nothing in the collection before he became a student at Bethel. Some genealogical materials are included such as files for Suderman family reunions. Education materials include both notes and syllabi, not only from courses taken by Suderman, but also for courses taught by Suderman. However, other than humanities courses and a few music courses taught in the1960s, most of the teaching materials are from Sunderman’s last decade at Bethel with almost nothing from his first ten to fifteen years. There are administrative files from departmental and other committees, including his work as North Central rep and on curriculum development. Very extensive files relate to his sabbaticals and summer workshops and also to the numerous South American activities. Some files also relate to each of his many choral activities, directing church choirs, Mennonite Men’s Choir, Golden Singer’s Choir, etc. Several boxes are filled with a vast array of English and Spanish choral music, which are completely unorganized.
The papers consist mostly of correspondence and articles relating to the various mission fields. Most important would be the materials on the General Conference Mennonite mission in China. Especially interesting is the material on the Japanese internment, including a large group of sketches of camp life, and items relating to the changes in China after the war.
The family history materials in the collection are also significant. They shed light on the early Bethel College (Halstead Seminary) and on Emmaus Mennonite Church near Whitewater, Kansas.
Mai 1921: An 6 Stellen wurden während der ganzen Expedition Brunnen gebohrt, 15 - 16,5 Fuß tief. Zweimal stieß man auf salziges, sonst jedes Mal auf gutes Wasser.
Mai 1921: Auf zwei Stellen, bei Hoffnungsfeld und in der Nähe vom heutigen Loma Belén, wurde in einem Quebracho das Zeichen ME V.XXI eingeritzt. Der Quebracho von Loma Belén befindet sich heute im Museum in Loma Plata.
Mai 1921: Raststätten unterwegs: das Nachtlager im Chaco wurde an offenen Stellen aufgebaut. Weil es zwischendurch auch regnete, stellte man Zeltplanen auf, um darunter die Mosquito-Netze auszuspannen.
1966: Lehrerkollegium der Kolonie Menno – Sommerkursus – Aula Magna Colegio Loma Plata Namen der Lehrer:
Reihe: v.l. Peter D. Krahn, Philip P. Kehler, Abram W. Kehler, Johan P. Kehler, Hein B. Harder, Cornelius W. Friesen, Jacob B. Funk, Kornelius K. Sawatzky, Abram K.P. Sawatzky, Gerhard H. Hiebert,
Reihe: v.l. Abram B. Reimer, Peter B. Funk, 1 unbekannt, Cornelius C.F. Wiebe, Johan T. Funk, Johan W. Hiebert, Franz G. Froese, Abram D. Hiebert, Jacob Toews, Abram F. Wiebe, Peter S. Klassen, Isaak E. Braun, Johan K. Giesbrecht, Jacob K. Giesbrecht, etwas verdeckt Martin W. Friesen,
Reihe: v.l. 1 unbekannt, Hein S. Giesbrecht, Joseph Guenther, David F. Sawatzky, 2 unbekannt, Ganz hinten: v.l. 1 unbekannt, Johan Reimer, Andreas F. Sawatzky.
