Google "1930 Census."

Wayne Co., KY, 1830, James DEON?

Wayne Co., KY, 1840, DEAN, David, James, James (heads of household only). I couldn't find William. Some researchers say he went to St. Clair Co., MO, but I couldn't find him.

Wayne Co., KY, 1850, DEAN. The actual census shows households, but names have been alphabetized on the database. However, comparing with the 1860 Census, these were included among those listed in 1850: William, 42; Jane, 38; Jane, 14; Milton, 9; Frances A., 7; Washington, 4; William P., 3; Mary E., 2; Golston A., under one.

Monticello P. O., Wayne Co., KY, 1860:
DANE, James, 20, in household of Thos. SANDERS.
DANE, William, 52; Jane, 35 {?}; Margaret J., 24; Milton G., 19; Frances A., 16; Washington, 14; William P. 12; Mary E., 10; Gholson, 8.
David, 47; Senia, 44; Burrena, 18; Elizabeth, 20; Leo, 16; Samantha, 15; Littleton B., 12; Jania, 10; Helen, 9
Angeline, 5; Sarah Ann, 2.
James, 87. [b. Dorchester Co., MD]
[David's family was there in 1870, with wf. Lina, daus. Jane, Angaline, & Sally.]

Crawford Co., MO, 1870, DANE
William, 61; Jane, 57 {?}; Pinkney, 31; Jane M. {Margaret?} 32; Milton G., 28; Washington, 26; William P., 24.
Golson, 19; Emeline {Mary?} 16.

http://pilot.familysearch.org
Census, Justice Precinct 1, Montague, TX, June 23, 1900, #302. DANE
William P., b. Feb. 1846, m. 12 years, he & father b. KY, mother b. GA
Wf. Lizza {Elizabeth}, b. Jan. 1859, TX MS AL, had 9 ch., 9 li.
[His ch.] {illegible, Golson?} B., b. Apr. 1874, MO KY MO; Ida, b. Mar. 1878, MO KY MO; John, b. Feb. 1881, Indian Terr.
[Theirs] Maude, b. July 1888; Mattie, b. Jan. 1890; William E., Dec. 1891; Joseph W., b. May 1894; Charlie, b. Feb. 1897; Louis (son, sic, Louise?), b. Nov. 1899
[Hers] POWER, George T., Jan. 1881, TX TX TX; Etta, Jan. 1883, TX TX TX; Lessie, Feb. 1885, Indian T. TX TX.
Mother-in-law Julie A. SMITH, b. Je. 1833, AL AL MS, had 7 ch., 4 living.

Note the son b. Indian Terr. Sylvanus had a son, b. 1880, Indian Terr., so that's probably why I can't find them in 1880. Sylvanus & family are also of Montague Co., 1900.

Google "1930 census" for other databases. Montague Co., TX, 1910, DANE
William P., 64; Lizzie, 51; William E., 15 {?}; Joseph W., 16; Wesley {Charley?}, 13; Lois {Louise?}, 10; Ruby, 8.

Households aren't shown in 1920, but they were still in Montague Co., TX. These are consecutive entries, but Elizabeth couldn't be mother of the last two:

DANE, William P., 73; Elizabeth, 62; Joe, 25; Charlie, 22; Ruby DANE/PERONA, 18
DANE, Robert L., 14; Auther R., 10.

Social Security Death Index
DANE, William E. (4 Dec. 1892 - 22 Nov. 1992) last res. Whiteface, Cochran, TX
DANE, Charles (1 Feb. 1897 - Aug. 1976) lr. Keller, Tarrant, TX.
[Those should help you find obituaries.]

RootsWeb Family Trees: William B. "Slaughter" DANE (1808, KY - 1902, Montague Co., TX? [I couldn't find him in 1900]) m1. Nancy Jane DAWSON; m2. Catherine Jane CONN, b. GA, ca. 1812/25!
[second marriage 7 Dec. 1834, Russell Co., KY?]

Children:

Margaret Jane, b. Mar. 1836, Wayne Co., KY
Pinkney, b. 1839
Milton G., b. 1841
Frances A., b. 1843
Washington S. / Sylvanus W. (19 Dec. 1844, KY - 21 Mar. 1925, Montague Co., TX, bu. Tage Cem. with 2d wf. Sarah E. [ADKINS] (27 Oct. 1855 - 20 Nov. 1930) he m1. 27 Mar. 1873, Crawford Co., MO, Angeletta [Angela Etta?] GOSSAGE.
William P. b. 1 Feb. 1846
Mary E., b. 1848
Gholson A., b. 1850, m. Emmeline GOSSAGE.

GOSSAGE was a prominent name in early Maryland, pronounced that way but spelled GORSUCH.

William P. DANE (1 Feb. 1846, Wayne Co., KY - 17 Sep. 1937, bu. Tage Cem., Montague Co., KY) m1. 25 Dec. 1870, MO, Martha [B]RICKEY, who died at Durant, OK. Wm. P. served 1 Sep. 1863 - 10 Jan. 1865, in Co. K, 13th KY Union Cavalry. Pension applications GenForum > DANE > #153 & 154.

Children of first m.

Gholson Banford (11 Apr. 1874 - 7 Jan. 1914)
Cora Jane (26 Je. 1876 - 26 Sep. 1876)
Ida Frances, b. 7 Mar. 1878
John Arthur, b. 24 Feb. 1881.

Wm. P. DANE m2. 7 Oct. 1887, Montague Co., TX,
Elizabeth [SANDERS, d/o Seaborn J. & Julia] POWERS, wid/o A. J. POWERS, who d. 12 Dec. 1885, Oklahoma. Elizabeth SANDERS was b. 26 Jan. 1859, Van Zandt Co., TX. They had

Maude (18 July 1888 - Apr. 1974, Lawton, Comanche, OK) m. Rufus LAMASCUS [of Montague Co., 1920].
Mattie, b. Jan. 1890, m. _ COMER
Wm. Edgar, b. 4 Dec. 1891/2
Charles Ivan, b. 1 Feb. 1897
Louise, b. 15 Oct. 1899, m. RO[D]GERS.
Ruby Jewel, b. 28 Dec. 1901/2.

Van Zandt Co., TX, 1860, SANDERS:
S. J., 28; Julia, 27; J. H., 7; Jora, 5; M. J., 3; E., 1.

Seaborn Jefferson SANDERS, b. ca. 1832, MS/AL, m. 26 Aug. 1852, Harrison Co., TX, Julia A. HADLEY, b. Baldwin Co., AL, d/o Julia JOHNSON & Jesse B. HADLEY. Julia m2. 13 Mar. 1864, Harrison Co., TX, Hadley/Hatley SMITH, & had Polk & James SMITH, of Erath Co., TX, 1870.

This should get you started. Can you tell us more about Ruby?