I found these tonight while doing a search. Another treasure trove of genealogical data. All links lead to Google Books where you can either look through the books online or download them to your computer fairly easily. Edited by Stephen Marion Watson and dated back to the late 1800’s.
The Maine Historical and Genealogical Recorder- Vol. 1
The Maine Historical and Genealogical Recorder- Vol. 2
The Maine Historical and Genealogical Recorder- Vol. 3
The Maine Historical and Genealogical Recorder- Vol. 4
The Maine Historical and Genealogical Recorder- Vol. 5
The Maine Historical and Genealogical Recorder- Vol. 6
The Maine Historical and Genealogical Recorder- Vol. 7