Hello Bev,

Or.....you could get the Marriage of William Watterson to Louisa.
This could give more information for him.

I have found,
ILLINOIS STATE ARCHIVES

www.ilsos.gov/isavital/idphDeathSearch.do

Last Name First Name Middle Name Sex/Race Age Cert No. Death Date County City Date Filed
WATTERSON WILLIAM J M/W UNK 0033973 1947-11-16 COOK CHICAGO - -
WATTERSON LOUISA JEMIMA F/W Y-71 0029388 1935-07-11 COOK MAYWOOD - -

Get the Death Certificate for Louisa.
This should state how many years married and maybe where ?

On the death Cerificate of William J. - the age is unknown - so might not have much information.

Maybe the Deaths in the Newspapers might have information.

Averil