From Anne Whelan Englert:
Pat Whelan McDonnell’s husband, Phil, died yesterday (September 14, 2017). He had been having some health issues recently but his death was unexpected. Phil was 68 years old.
Update September 27, 2017:
Anne sent a copy of Phil’s obituary, available here (1-page PDF), published in the (Menlo Park) Alamanac. She also sent a link to the web site for his memorial, which has some nice photos of Phil and his family from his lifetime, www.philmemorial.com.