Posted by SFgenealogy on Monday, September 06, 2010 at 14:06:12 :

DIED SUDDENLY - Dr. Isaac ROWELL, a well known physician of San Francisco and for some years past the Health officer of that city, went to his home in usual good health on Tuesday evening, and died at 9 o'clock on Wednesday morning, from congestion of the lungs.

Source: Contra Costa Gazette (Pacheco, Contra Costa County, CA), 7 Jan 1871. Transcribed by Dee Sardoc.