Looking for Katy Phillips

Hello,
My name is Raquel Rosa and I’m writing to you from Lisbon, Portugal.

I’m trying to find some news from a 70’s clothes design Kati Phillips and her family.
I know that she worked for Laura Philips at London and after that she went to New Jersey to work as costumes design in a theater.

She was married with Michael Phillips and after she gets the divorce.

My parents (Carlos and Rosario) were big friends of her.

They lived for three months with her family at
Horseshoe Farm in Weston in 1976.

Last new from her was at she was living in the northeast of the United States with her grandaughter Simone Phillips. But it’s was a long time ago at Hitchin Message Board

Could you please help me to find her or some contact of Laura Phillips company?

Thanks in advance and Best Regards