Hi Ethan:  Following up on the information you provided, Lillian Patten is buried at Ferncliff Cemetery and Mausoleum in Hartsdale, Westchester County, NY.  FindaGrave has a record for her burial information--on tat record, it shows a photo of Sydney's gravestone in Louisville and also a link to her daughter June's burial at Ferncliff (1961).

Good luck in your search,

Rod
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Rod MacNeil
Philadelphia, PA USA
roddy407@...