I did find a Walter on the Social Security death index

Social Security Death Index
about Walter Kliszewski
Name: Walter Kliszewski
SSN: 001-09-5441
Last Residence: 03243 Hill, Merrimack, New Hampshire, United States of America
Born: 28 Apr 1912
Died: Oct 1984
State (Year) SSN issued: New Hampshire (Before 1951 )


Most people I have foind with that last name are in Ohio. I hope this helps.