De facto. [L.] actually; in fact; existing; as a king de facto, distinguished from a king de jure, or by right. 
American Dictionary of the English Language, Noah Webster 1828, Vol. I, page 56.

DE FACTO. Actually; in fact; in deed. A term used to denote a thing actually done. 
    A government de facto signifies one completely, through only temporarily, established in the place of the lawful government; Thomas v. Taylor, 42 Miss. 651, 2 Am. Rep. 625, Chisholm v. Coleman, 43 Ala. 204, 94 Am. Dec. 677, See De Jure Austin, Jur. Lect. vi. p. 336. 
Bouvier’s Law Dictionary, Third Revision (8^th Edition)(1914), Volume 1, page 761.

de facto (dë fak’tö). In fact, as distinguished from "de jure,” by right. 
Law Dictionary, James A. Ballentine, Second Edition, 1948, page 344.

de facto government. A government wherein all the attributes of sovereignty have, by usurpation, been transferred from those who had been legally invested with them to others, who, sustained by a power above the forms of law, claim to act and do act in their stead. 30 Am Jur 181. 
Law Dictionary, James A. Ballentine, Second Edition, 1948, page 345.

De facto. In fact; actually; indeed; in reality. Ridout v. State, 161 Tenn. 248, 30 S.W.2d 255, 257, 71 A.L.R. 830. 
Black’s Law Dictionary 4^th Edition (1951) page 504.

De facto government. One that maintains itself by a display of force against the will of the rightful legal government and is successful, at least temporarily, in overturning the institutions of the rightful legal government by setting up its own in lieu thereof. Wortham v. Walker, 133 Tex. 255, 128 S.W.2d 1138, 1145. 
Black’s Law Dictionary 4^th Edition (1951) page 504.

de facto (dë fak’tö, da-, de-). [[L]] existing or being such in actual fact though not by legal establishment, official recognition, etc. [de facto government]: cf. de jure. 
Webster’s New World Dictionary, 3^rd College Ed. (1988), page 360.

Source: http://www.pixi.com/~kingdom/defacto.html