You wrote in Your journal: "Re: Madame Isaac Pereire (Bourbon, Garcon, 1881)
I need another one!! Where can I buy one?!???? "
Just take a look at the page for this rose and under the buy from tab choose United States and than state, or all regions... and You'll find quite some nurseries selling this rose. And at the bottom of that page You might push the button: View all nurseries selling this rose.
Shortcut: http://www.helpmefind.com/gardening/l.php?scope=1&countryID=2&oTyp=0&n=2111&l=2.2111&tab=16