[OT] NAC peerage

I notice that England (and undoubtedly Scotland 
and anyplace else that is part of the Crown's 
control) has a whole passle of what I'd call 
"peers" (people with noble titles). 

Glancing through the list of Canadian Governor 
Generals alone shows me
Viscount Monck
Lord Lisgar
Earl of Dufferin
Duke of Argyll/Marquess of Lorne
Marquess of Landsdowne
Lord Stanley
Earl of Aberdeen
Earl of Minto
Earl Grey
HRH Duke of Connaught
Duke of Devonshire
Lord Byng
Viscount Willingdon
Earl of Bessborough
Lord Tweedsmuir
Earl of Athlone
Viscount Alexander

Now, did all these people hold a hereditary 
peerage? Would they all have some form or fief 
associated with the peerage? Or merely a title, 
sans lands? I'm asking this while I'm thinking 
about the form of the NAC in 2183 and how the 
House of Lords will look. 

I'm fairly certain the House of Representatives 
and the House of Commons can be considered 
to have fallen into some sort of General 
Assembly for the Confederation. But what about 
the Lords? Would peerages be created on the 
new worlds? Would colonies all fall under some 
sort of peerage? (this would reinvigorate the 
peerage and probably work well for the NAC 
royals/peers and for the Romanovs) Would we 
see the Duke of Memphis? The Earl of Niagra? 
The Marquess of Brooklyn? 

And as an aside, how many of these nobles 
(enfeoffed and unenfeoffed) in England and 
Scotland these days? Someone must keep a list. 

Is there an online version of such a roll of peers 
that lists what titles exist, which ones are 
currently held, and by whom? And if so, does it 
distinguish between titles with land and without? I 
haven't even the vaguest idea where to begin a 
search for such a thing. 

And can the Crown arbitrarily create or revive 
titles and grant lands and whatnot? Or has this 
been severely constrained since the coming of 
the constitutional part of constitutional 
monarchy?

Sign me Curious-In-The-Colonies,