Very interesting discussions here! I have an original manuscript lyrics book from Helena Montana Territory 1873-74 era with some variant lyrics of this song, likey designed for the local audience. There are an amazing 12 verses, some with obscure lyrics - I wrote them as I deciphered them - some of the error could be mine, some in the spelling, etc. With more research, the date could probably be more accurately established but the manuscript ledger book was owned by one Mose Abraham, Helena City Montana, and he dated the front October 20, 1873. Some of the songs are "as performed by", including members of the Great Western Minstral Troupe, apparently led by Eugene Holman, Song and Dance Artist, Bajoist, etc. Enjoy!

Days of Fourtynine
1st
You see before you Old Tom Moor
A relic of by gone days
The people call me a bummer sure
But what care I for praise
When I think of the days that are passed and gone
It makes me grieve and pine
For the days of old the days of gold
The days of fourtynine
2nd
I had comrades then a savage set
They were rough I must confess
But brave and bold as true as steel
Like hunters from the West
But they like many an other fish
They have run out their line
But like good old briks they stord(?) the kicks
Of the days of fortynine
3rd
There was "Monte" Pete a clever chap
As ever had a dad
He'd deal from morning untill night
Or as long as he had a scad
One night a pistol "laid him out"
T'was his last "lay out" in fine
For it caught him sure right "bang" in the door
In the days of fourty nine.
4th
There was "New York" Jake the butcher boy
Who was always on a tight
Whenever Jake got on a spree
He was "spiling" for a fight
One night he ran a gainst a knife
In the hands of old Bob Kline
And over Jake we held a "wake"
In the days of Fourtynine.
5th
There was "Old Lame Jess" a hard old cuss
Who never would repent
Jess was never known to miss a meal
Nor never to pay a cent
But poor lame Jess like all the rest
To death he did incline
And in his bloom he "went up the flum"
In the days of fourtynine
6th
There was "Buffalo" Bill who could out roar
A Buffalo Bull "you bet"
He "roared" from morning untill night
He may be "roaring" yet
One day he fell in a prospect hole
Twas a "roaring" bad design
And in that hole he "roared" out his soul
In the days of fourtynine.
7th
Then there was Henry Plumer
A ruffin he was by trade
He went up to Montana
And thought his fortune was made
But quickly he "passed in his checks"
Like others of his kind
With a hempen rope about his throat
Like the days of Fortynine.
8th
There was Bill Luttle as good a boy
A ever drew a breath
He caught Banmonia one day
And struggled hard with death
Poor bill he now lies in his grave
Way over in white pine
He leaves many friends to mourn his death
Of the days of fourtynine
9th
There was "Farmer" Peele another sport
Who from California came
He delt faro and played "short card"
And many an other game.
But "Farmer" like many an other one
He had lived out his time
For "Sonny Bull" put out his light
Like the days of fortynine
10th
There was one I nearly had forgot
And that was Irish Tom
As brave a heart as e'er drew a steel
Or made an enemy run
His enemies said that he would hang
In his boots when he was dead
But he died one day in the month of may
On a downy Feather bed
11th
There was old bill stine a good old sport
A butcher he was by trade
He used to run "with der machine"
A gallant fire "blade"
He worked on a fire in Montana one day
Which over taxed his spins
Wid out stopping he laid down and died
Like the days of fortynine
12th
Of all the comrads I had then
Theres none now left but me
The only thing I'm waiting for
Is a senator to be
The people cry as I pass by
There goes a travelling sign
It is Old Tom Moore a bummer sure
Of the day's of fourtynine.