How old is Madam Hooch?

[lady.nymphaea at faerielands.com]

No: HPFGUIDX 24020

I was reading over PoA yesterday (of course, the book's at home, and 
I'm not) and noticed something in the chapter where Harry finally 
gets his Firebolt back and everyone is trying to get a look at it. 
When Madam Hooch is looking at the broom, she mentions that she 
learned to fly on a Silver Arrow broom. Well, Silver Arrows were one 
of the last generation of artisan racing brooms, first made sometime 
between 1901 and 1926. Does that mean that Madam Hooch also dates to 
sometime between 1901 and 1926?

Meril
who really, really needs to stop thinking about dates