Sorry, I don't recognize those names.
I did speak recently with someone from Colombia. Her maiden name if I remember correctly was Himelfarb.
She lived with some Himelfarbs in Philly when she came to the USA for college.
One of the Himelfarbs or Himmelfarbs was a manager for Penn Oil in Philadelphia according to either their WW1 or WW2 Draft Card. You can check it here...
Anyway, Penn Oil (assuming it was the same company) was owned by Paul M. Himmelfarb of Washington. He sold the company just prior to the stock market crash.
Seems like the one in Philly must have been related, or it's just a big coincidence... Who knows?
Lawrence