1911-1915 Executive Council Papers
1956 Visit Report Britzius to Grand Regent
1967 Founder Lewis Letter To Pope
CONSTITUTION OF THETA TAU 1911
CONSTITUTION OF THETA TAU 1932
CONSTITUTION OF THETA TAU 1965
CONSTITUTION OF THETA TAU 2001
RUSHING AND PLEDGE MANUAL 1957
THE ENGINEER IS GENTLEMEN 1966
PLEDGE MANUAL OF THETA TAU 1956
PLEDGE AND MEMBERSHIP MANUAL 1963
PLEDGE AND MEMBERSHIP MANUAL 1966
PLEDGE N MEMBERSHIP MANUAL 1977
PLEDGE N MEMBERSHIP MANUAL 1980
PLEDGE N MEMBERSHIP MANUAL 1994