Apparently, Beulah Estella Sisler went by Lelia through most of her life.

Kathryn Cooley Miller in her book "A Miller-Emme Ancestry from Haydentown, Pennsylvania" documents
the family of Lorenzo Dow Sisler and Carrie Jennewine as:

  1. H. Raymond b. 1893 m. Mar 27 1912 Hannah L. Keener b. 1892 dau. Benjamin Keener and Ellen.
  2. Viola Mary Margaret b. Jan 10 1900 Jacobs Creek, PA d. Feb 9 1989
     m. Nov 24, 1921 Hugh Burchinal Humbert b May 16, 1897 Gans, PA d. May 23, 1981 son
     William Humbert and Ada Olive Burchinal bur Mt. Moriah cem., Smithfield, PA
  3. Lelia Estella m. Sept 20, 1920 Donald R. Laing
  4. Lorenzo Dow
  5. H. Playford b. 1894 m. Dec 22, 1915 Jessie D. Conn b. 1893 dau. Jacob L. Conn and
     Laura Neighbors.

From Jim Emme:

1930 PA Washington Centerville
 
/236/242 Laing, Donald head 32 marr age 23 PA Scotland PA salesman, mercantile store
                Lella wife 33                    24   PA WVAx2
                Kathleen dau 8                         PAx3
                Janet   dau 4 10/12                     “

wwi Donald Rankin Laing b 5 Nov 1897
ssdi Donald Laing b 5 Nov 1897, d May 1974 in Richeyville, Wash, PA
     * Leila E. Laing b 5 Dec 1896, d 2 Feb 1990 in PA

1900 PA FC Upper Tyrone

/287/288 Laing, Andrew head Jan 1870 30 marr 3 yrs Scottlandx3, coalminer, year of
                                       Immigration 1883, resident in USA 17 yrs
                Elizabeth wife Mar 1874 26 2 of 2   PAx3
                Donald R.  Son nov 1897 2              PA Scot PA
                Jean E. Dau Jul 1899 10/12                     “