This is a rather short obituary, as well as a notice that was posted in another community's column as well. While this clipping does not mention Mrs. Robertson by name, the first sentence gives every indication of having been written by her.
From the 20 April 1916 Fremont Times-Indicator:
This community was very much shocked Saturday when news came flashing over the wire that Jasper Sweet was dead. Only a short time ago he with his wife left for Traverse city to visit Mrs. Sweet's sister, Mrs. Phoebe Forton, and shortly after reaching Traverse City Mr. Sweet was taken much worse. the bereaved family have the sympathy of the entire community. The funeral was held Wednesday at the home of his daughter, Mrs Frank Gates, in Fremont.
And elsewhere in the same issue of the paper, probably in the Fremont gossip/news section:
The body of Jasper Sweet, who died last Sunday while visiting relatives in Traverse City, was brought here Monday. Mr. Sweet was 48 years of age. The funeral services were held yesterday from the home of his daughter, Mrs Frank Gates, Rev. R. A. Thibos officiating.
Apparently Mrs. Robertson didn't know this family as well, if she was the writer. After the first statement of shock, she doesn't share any of the personal memories she so often inserts into the obits.