Fisherman, when it comes to the trumpets the answer is YES, they are ALL blown in order and YES, the 42-months take place during the 6th trumpet/2nd woe. What this means is that trumpets 1-5 and the events associated with them will have to occur BEFORE trumpet 6 can blow. Likewise, BEFORE trumpet 7 can blow the events associated with trumpet 6/2nd woe have to occur and end BEFORE trumpet 7. This means that trumpet 7 has to blow AFTER the 42-months end.
[Revelation 9:13 And the sixth angel blew his trumpet.]
[Revelation 11:2 But as for the courtyard that is outside the temple sanctuary, cast it clear out and do not measure it, because it has been given to the nations, and they will trample the holy city underfoot for forty-two months.]
[Revelation 11:14 The second woe is past. Look! The third woe is coming quickly.]
[Revelation 11:15 And the seventh angel blew his trumpet.]
Well now, according to WTS the 42-months were from Oct 1914 to April 1918. If that were true thou and that is when the 42-months were and since the 7th trumpet blows AFTER the 42-months/2nd woe ends then that means that the 7th trumpet blew in April 1918 at the earliest.
It seems the WTS agrees:
[7-15-51 WT- At this eventful time the seventh angel blows his trumpet, that is, after the 1,260 days ended in 1918. Then it is that these wonders can come to pass. “And the seventh angel blew his trumpet. And loud voices occurred in heaven saying: ‘The kingdom of the world has become the kingdom of our Lord and of his Christ, and he will rule as king for ever and ever.’(Revelation 11:15)]
Now you say, well that can't be because the WTS teaches that the 7th trumpet blew in Oct 1914.
[11 -1- 02 WT – In 1914 the prophetic words of Revelation 11:15 were fulfilled: And the seventh angel blew his trumpet. And loud voices occurred in heaven, saying: “The kingdom of the world did become the kingdom of our Lord and of his Christ, and he will rule as king forever and ever.”]
Ok so let's just say the 7th trumpet did blow in Oct 1914 even thou above they also said it blew in 1918. The fact that they say the 7th blew AFTER the 42-months ended is correct and shows that the trumpets blow in order. But that means that for the 7th to have blown in Oct 1914 then the 42-months would have to have occurred in April 1911 and ended in Oct 1914. But they don't teach that, no as I said they say those 42-months were Oct 1914 to April 1918.
But according to a straight reading of the Scriptures and the 51 WT we know the 7th trumpet can't blow until AFTER the 42-months.
So, to solve this dilemma you are to know what/when the 42 months are and what the 7th trumpet is announcing. This brings us back to speaking about Joel and the last day/1,000 years.