The Proclaimer book has a brief history:
Russell encouraged regular meetings in 1881. Some Bible students make the mistake of using the Bible at the meetings and not the publications, but the traveling ministers of the time readjusted their thinking. In 1895, they got all straightened around to using the Milennial Dawn books and it looks like the Book Study was born.
Then, Russell wanted another meeting to be an "expression of devotion" called Cottage Meetings and these included hymns and testimonies. However, there was too much emphasis on self and not enough on the Watchtower, so it "became apparent that meetings designed to equip each one to share in the evangelizing work was more beneficial." In 1923 the KM was born and by 1932 those worship meetings started by Russell were completely switched over to the Service Meeting. No more worship or testimony, but rather dictated "help" in the Christian ministry.
In 1916, some brothers set up Schools of Prophets by themselves to become better public speakers. It was attended only by males and brothers privately compiled a textbook. However, they were not sufficiently under the WT rule so they were discontinued. Because the time was so short to the end, a special school began in 1943 where everyone attended (only men participated) that would equip publishers to offer Bible literature. In 1959, sisters were included in the training. Hence, the TMS was born.
Sunday meetings made the mistake also of starting out discussing the Bible, but people had differences of opinion on the Bible, so by 1905 outlines for proper congregation discussion were published in the Watchtower. There you have the WT study which was mandated in 1922.
The Public talk seems to have started in 1911 where sufficiently talented speakers would travel out and give six discourses in some town and then see if they had enough people to start up a group. In the 1920s the radio was used, and in the 1930s, recorded talks by Rutherford were broadcast. By 1945, the TMS school had turned out enough qualified men to give public talks.
There were no Sunday Schools because in 1883, there was only a short time left until all JWs would be in heaven, so there was not time for Sunday School for children. They changed their mind around 1918 when they all found themselves still here. Sunday school started, but by 1936 it was discovered that they were too well organized and not under the WT thumb, so it was discontinued. In 1938, it was pointed out that people were staying out of field service in order to train the young in these classes, so any and all separate classes for youth were discontinued. And there you have the loss of Sunday School and child classes.
