moved to the Eichbaum building. Fifth avenue was the 
address"of the school for over forty years. 
In the latter location, another disastrous fire wiped out 
the school. However, Mr. Duff was not only a great educator, 
but an able financier. This combination of qualities, together 
with strict integrity and firmness of purpose, enabled him 
without delay to re-establish the college in its fourth location, 
in the Harper building at Liberty avenue and Eighth street. 
A year-book, a cloth-bound volume of eighty pages, 
issued by the college while at this location, gives the names 
and addresses of graduates from practically every state in 
the Union. In 1904, the school was moved to the Irish build- 
ing, where it remained for ten years. Two years after its 
location at this address, Mr. Duff decided to retire from the 
educational field, and on June 1, 1906, P. S. Spangler became 
principal of the college. 
Mr. Spangler’s educational background fitted him pecu- 
liaTly well for the office for which he was selected. His entire 
life has been devoted to public and private school work. His 
education was received in the public and normal schools of 
Pennsylvania, Otterbein University and Iron City College, 
where he received his technical commercial training. He was 
a member of the faculty of Iron City College, and was 
superintendent of the Commercial Department, for eight 
years previous to his election as principal of Duff’s College. 
In 1908, Duff’s College secured control of the Iron City 
College, which was thereafter operated as a branch for 
specialized training in Gregg shorthand and secretarial 
duties and functions. In Duff’s, Graham shorthand and type- 
writing had been introduced many years previous, but the 
growing popularity of the Gregg system made such a special- 
ized school very desirable. 
In 1914, Duff’s College removed to the second and third 
floors of the Stanwix building, Penn avenue and Stanwix 
street. In 1921, control of the Martin Shorthand School was 
secured, and this was combined with the Iron City branch. 
The growth of the school became so phenomenal, that the 
combined quarters of the Iron City branch and Duff’s were 
wholly inadequate, and it became necessary to seek more 
extensive space. In 1922, therefore, a four-story building on