Does Anyone Know Of My Grandfather Hayenga

My gradfathers name is Calvin Hayenga. He lived in Gallup with the Zuni indian`s. He was missionary, a white man from Germany who built a christian church in Galllup New Mexico. Also he spoke German,English and Zuni. He loved the indians very much, he had five sons Cal,Henry,Bert,Burton,and Godfry and one daughter who is my mother Lydia Hayenga. If anyone remembers him would you please e-mail me your thoughts or info. Thank You very much.