Many fine details obtained from Kathryn Mercedes Cooley Miller's Book of Miller-Emme Ancestry

According to Kathryn Miller, Arthur and Dora were never married.

1900 Census - Fayette County, Pennsylvania
George TWP - 21 June 1900

260 257
Miller, Henry    Head  W M Jul 1864 35 M 9     Penn Penn Penn Teamster
  Cynthian       Wife  W F Jun 1871 28 M 9 4 4 Penn Penn Penn
  Russel         Son   W M Jan 1892  8 S       Penn Penn Penn
  Arthur         Son   W M Sep 1894  5 S       Penn Penn Penn
  Henry          Son   W M Feb 1897  3 S       Penn Penn Penn
  Daisy P.       Dau   W F Mar 1900 2/12 S     Penn Penn Penn
  Dora           Dau   W F Apr 1884 16 S       Penn Penn Penn
           (Notation of 'Dau' for Dora is forshortened in the original record)

1910 Census - Fayette County, Pennsylvania
George TWP - District 31

 167 170
 Miller, Samuel    Head M W 47 M2 3     Penn Penn Penn Laborer at Coke Yard
  Anna C.          Wife F W 28 M2 3 6 6 Penn Penn Penn
  Freddie          Son  M W 23 S        Penn Penn Penn
  Benjamin         Son  M W 17 S        Penn Penn Penn
  Amedy            Son  M W 15 S        Penn Penn Penn
  Effie J.         Dau  F W 13 S        Penn Penn Penn
  Daisy            Dau  F W 10 S        Penn Penn Penn
  Dora             Dau  F W  5 S        Penn Penn Penn
  Walter P.        Son  M W  2 S        Penn Penn Penn

1920 Census - Fayette County, Pennsylvania
Georges TWP - 6 Feb 1920

  206
  Miller, Samuel    Head M W 59 M Penn Penn Penn Laborer
  Annie C.          Wife F W 45 M Penn Penn Penn
  Benjamin          Son  M W 27 S Penn Penn Penn None
  Dora C.           Dau  F W 16 S Penn Penn Penn
  Walter P.         Son  M W 12 S Penn Penn Penn
  Wilbert H.        Son  M W  8 S Penn Penn Penn
  Blanch            Dau  F W  5 S Penn Penn Penn

From Kathy Sawyer (wccsawyer @ hotmail.com):

MILLER, ANNIE CYNTHIA –
aged 79, of R. D. 1 Smithfield (Haydentown) died Monday May 28, 1951, at 6 a.m. following an extended
illness. She was predeceased by her husband, Samuel Miller, December 21, 1929. Survivors are three
daughters, Mrs. Daisy Myers of Fairchance; Miss Dora Miller at home; Mrs. Blanche Myers of White
House; five sons, Russell, Arthur, Walter and Wilbur of Haydentown; Henry of Fairchance; three
stepdaughters, Mrs. Effie Wilson and Mrs. Airy Wilson of Fairchance; Mrs. Cora Byerly of 
Monongahela; three step-sons, Weldie [sic], Amadee [sic], and Fred Miller of Fairchance; four
sisters, Mrs. Ida Braddee of Uniontown; Mrs. Rosetta Mickey of New Kensington; Mrs. Rebecca Swaney of
R.D. 1 Smithfield; Mrs. Sude Swaney of Fairchance; two brothers, Jarrett B. Swaney of Martin; Alec
Swaney of Shady Side; 30 grandchildren, 30 great-grandchildren. She was a member of the Brethren
church of Fairchance. Friends will be received in the Sharp & Wagner Funeral Home, Fairchance, after
7 o'clock this evening where services will be conducted Thursday, May 31, at 1 p.m. with Rev. Harry
Humbert  officiating. Interment will be in the Swaney cemetery, Haydentown.