In N.L.R.B. v. Brown Root, Inc., 311 F.2d 447, 454 (C.A. 8), it is said that "in a back pay proceeding the burden is upon the General Counsel to show the gross amounts of back pay due.
Permitting "non-deduction of supplemental earnings . . . where an employee who had spare-time earnings prior to discharge from his regular job continued in the same spare-time job during his period of discharge," and further holding that as long as employee was "moonlighting before his unlawful discharge," amounts earned in any "spare time employment" should not be used to reduce back-pay award