Operates one of his father’s farms, is in the coal business by lease and a stockholder and director of the Curwensville National Bank [Organized by John Patton (1823) in 1864].1989
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Hon. Jos. O. Clark, of the Edensburg Forest No. 44 T.C.L. entertained at his estate “Jos-Win”, Glen Campbell, Indiana County, PA and initiated candidates from other localities. From the vicinity of Curwensville among those who were taken in, and later demitted to organize and became charter members [of Keystone Forest No. 93], was an M. A. Caldwell.

Keystone Forest No. 93 T.C.L., Tall Cedars of Lebanon, of Curwensville, was instituted June 19, 1923 in the Curwensville Opera House. The meeting was presided over by Supreme Tall Cedar John A. Longacre of Camden, NJ, home of the Supreme Forest.

The degree team from Mountain Forest No. 44 Ebensburg, Pa., with their Band, assisted in the initiation of the 1st class of new members. Following the meeting in the Opera House the members retired to the lawn of the Presbyterian Church where supper was served. The membership of Keystone Forest comprised members of Masons from Clearfield, Center and Jefferson Counties.

Keystone Forest No. 93 since first instituted has used the Masonic Temple of Curwensville as their home.1990
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Soon after [1924], the Masonic Hall Association [in Curwensville] was formed, and among the members was Merritt A. Caldwell. [For more about the Masons of Curwensville see Apgar Bloom (1838-1913), and Hugh McNiel Irvin].900