No one has shown that Darby is not the father of pre-trib-dispensationalism. You deny it but denial does not history make!
Maybe this will help you see it, here are some that show early church leaders, those in the early stages of the church who were looking for the immenent return of Christ for his church.
Lets look at them:
Irenaeus (130 A.D. – 202 AD) "was a bishop of the church in Lyons, France. He was an eyewitness to the Apostle John (who wrote the Book of Revelation) and a disciple of Polycarp, the first of the Apostle John’s disciples. Irenaeus is most-known for his five-volume treatise, Against Heresies in which he exposed the false religions and cults of his day along with advice for how to share the Gospel with those were a part of them.
In his writings on Bible prophecy, he acknowledged the phrase “a time, times and dividing of times” in Daniel 7 to signify the 3 ½ year reign of the Antichrist as ruler of the world before the Second Coming of Christ. He also believed in a literal Millennial reign of Christ on earth following the Second Coming and the resurrection of the just."
let's check another:
"Cyprian (200 AD – 258 AD) – Cyprian was Bishop of the church in Carthage. During his short stint as leader of the church, he guided the flock through intense persecution at the hands of the Roman Empire. In 258 AD after spending seven months of confinement to his home by order of Roman authorities, he was beheaded for his faith. Several of his works still exist today.
In Treatises of Cyprian he wrote in describing the end times Great Tribulation:
“We who see that terrible things have begun, and know that still more terrible things are imminent, may regard it as the greatest advantage to depart from it as quickly as possible. Do you not give God thanks, do you not congratulate yourself, that by an early departure you are taken away, and delivered from the shipwrecks and disasters that are imminent? Let us greet the day which assigns each of us to his own home, which snatches us hence, and sets us free from the snares of the world and restores us to paradise and the kingdom.”
And another:
"Ephraim (306 AD – 373 AD) was made a deacon in the church in Syria in 338 and later became the bishop of Nisibis. Although he was made a “saint” in the Roman Catholic Church, he was not involved in Catholicism and did not even live in the Roman Empire until the final years of his life. The book Pseudo Ephraim was one of his still existing works. It was called “Pseudo” because of later dispute over authorship. However the book’s one reference to the rapture is very compelling:
In his work, On The Last Times 2, he wrote:
“We ought to understand thoroughly therefore, my brothers, what is imminent or overhanging. Already there have been hunger and plagues, violent movements of nations and signs, which have been predicted by the Lord, they have already been fulfilled (consummated), and there is not other which remains, except the advent of the wicked one in the completion of the Roman kingdom. Why therefore are we occupied with worldly business, and why is our mind held fixed on the lusts of the world or on the anxieties of the ages? Why therefore do we not reject every care of worldly business, and why is our mind held fixed on the lusts of the world or on the anxieties of the ages? Why therefore do we not reject every care of earthly actions and prepare ourselves for the meeting of the Lord Christ, so that he may draw us from the confusion, which overwhelms all the world? Believe you me, dearest brother, because the coming (advent) of the Lord is nigh, believe you me, because the end of the world is at hand, believe me, because it is the very last time.
Or do you not believe unless you see with your eyes? See to it that this sentence be not fulfilled among you of the prophet who declares: “Woe to those who desire to see the day of the Lord!” For all the saints and elect of God are gathered, prior to the tribulation that is to come, and are taken to the Lord lest they see the confusion that is to overwhelm the world because of our sins. And so, brothers most dear to me, it is the eleventh hour, and the end of the world comes to the harvest, and angels, armed and prepared, hold sickles in their hands, awaiting the empire of the Lord. And we think that the earth exists with blind infidelity, arriving at its downfall early. Commotions are brought forth, wars of diverse peoples and battles and incursions of the barbarians threaten, and our regions shall be desolated, and we neither become very much afraid of the report nor of the appearance, in order that we may at least do penance; because they hurl fear at us, and we do not wish to be changed, although we at least stand in need of penance for our actions!”
So here we see at least three early Christian leaders who were looking forward to Christ return before the Tribulation. From around A.D. 150 to A.D. 350 they felt the Lord's imminent return would come. It didn't and thus Peter said scoffers would say where is His coming and it continues today scoffers asking where is His coming to snatch the church away.
Seems you had some misinformation that Darby started it seems these three taught it and one was under the Apostle John and knew first hand what the Apocalyptic Literary writing by John meant and he took it literally.