This looks like Myrtle Waltman's birth and death years. If so, she was about 43 when she divorced Guy.
Myrtle House Hamilton Waltman
Find A Grave Index
Name: Myrtle House Hamilton Waltman
Maiden Name: Hamilton
Event Type: Burial
Event Date: 1968
Event Place: Lake Delton, Sauk, Wisconsin, United States of America
Birth Date: 23 Feb 1873
Death Date: 26 Nov 1968
Affiliate Record Identifier: 79252394
Cemetery: Lake Delton Cemetery
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"Find A Grave Index," index, FamilySearch (https://familysearch.org/ark:/61903/1:1:QV2Y-CFBF : accessed 16 April 2015), Myrtle House Hamilton Waltman, 1968; Burial, Lake Delton, Sauk, Wisconsin, United States of America, Lake Delton Cemetery; citing record ID 79252394, Find a Grave, http://www.findagrave.com.