I am a research volunteer, not related.
I have a guess for you to check out.
(this is a fact though... Bertha (d. 1948) and Lester (d. 1943) are buried in Nola Cemetery, Park Falls, Price Co. found on findagrave)
The guess is based on WWI draft reg. Since the first census that Lester (sometimes written as Less) is found was 1910 in Price Co and stayed in Price Co till death. Couldn't find him in 1900.
The only name close registered in Price Co, Wi. (with a wife and 3 children) Ferdinand DeLessie Smith. b 27 Mar 1889 in Waupaca, Wi.
Hope this gives you some clues to work with.. good luck
Checked 1900 Waupaca Co.
There is a Ferdinand Smith b. Mar 1889 in the household of Enoch and Amelia Smith. They had been married for 35 years, had 11 children with 9 living.