RivkA was one of those people.
I follow a number of "Jewish" blogs of various types, and one of them is called A Mother In Israel. When that blogger read about my struggles with breast cancer, she connected me with RivkA. I've been reading her blog for several years now, and was always amazed at her energy and ability to live fully in each moment, even while dealing with her serious and ultimately, fatal breast cancer.
An example of that is a post here from her blog from just a month ago: