I don't know who would be the "father" of Pentecost other than God Himself. Some say Parham, but, others reject this because of some controversies surrounding Parham. There is no clear consensus as to who could be called the Father of Pentecost.
As far as disruption in the services, I think that would be a matter of perspective. To "outsiders', unfamilar with the operation of the Holy Ghost, it would seem the services were in disorder. But, these people were there to seek God and I don't think the services were out of order to them at all. I think of
Act 10:44. To some, the Day of Pentecost, no doubt, seemed out of order and somewhat chaotic. Frank Bartleman captured the heart and soul of the 20th Century Pentecostal Movement. You can find some on-line copies of the Apostolic Faith newspaper that really sheds light on the Azusa Street Revival.
Much of what has been writtenabout Azusa Street is somewhat repetitive, unfortunately. After 100 years, much of what we get are the "highlights" of the meetings. The Apostolic Faith paper would give us more info than what has been handed down from one generation to the next.
Other good books:
Their Story: 20th Century Pentecostals (Fred J. Foster)
Visions of the Disinherited (Robert M. Anderson)
The Early Pentecostal Revival (James L. Tyson)
The Winds of God (Ethel E. Goss)
The Holiness-Pentecostal Tradition (Vinson Synan)
Dictionary of Pentecostal-Charismatic Movements (Stanley Burgess, Gary B. McGee)
I have heard "Azusa Street and Beyond" is excellent, but I don't think I have that one.