Yes, the girls he already has. And a few young men, too. He was actually proud of his 'solution' to the shortage, which is essentially to put the muggleborn males to stud with the young women. But he said that the problem is it takes 'so long' for the females to bear, and then of course, there's a chance the baby will not be magical.

I have a feeling they might try to obtain even more of the ready supply of muggleborns. Possibly even recall those in service currently.

Only not Timothy. (Corax taunted him about that: 'Why not start with your own slave?' He told him that Timothy's been taking potions for years that have chemically castrated him. It was all I could do not to leap into the sitting room and tear his throat out. As it was, I think I did probably growl out loud a bit.)