I have the Manning Zion Lutheran Church Centennial book on this web page.
http://www.davidkusel.com/manning1/zion/frame.htm
I'm don't think there is much if anything listed about H.W. Saeger in the church history.
Do you have a photo of him?
We would be interested in any information you could share about him to add to the Church history.
You gave his first name but what does his middle name?

This specific web page (under Baptisms 108 - 111) has H.W. Saeger performing burials in 1903 & 1904.
http://www.davidkusel.com/manning1/zion/frame1.htm