Airport workers involved in the strike ballot include firemen, security guards, airfield marshallers, engineers and clerical staff.
School cleaners, cooks and low paid clerical staff are to get a windfall of hundreds of pounds.
Unison said administrative and clerical staff last month voted 88% in favour of the one-day strike action.
Administrative and clerical staff, as well as medical secretaries and senior nurses and matrons, are facing compulsory redundancy, the trust confirmed.
They include Education and Library Board headquarters clerical staff, school domestic assistants, playground assistants and catering staff, who were badly hit by a freeze on pay rises.
Last week's action by Unison members at hospitals in Wakefield, Dewsbury and Pontefract followed a ballot in October which saw 88% of those administrative and clerical staff balloted voting in favour of strike action.
Administrative and clerical staff, including medical secretaries and receptionists, were balloted by the union, which said 88% voted in favour of strike action and 96% voted in favour of action short of a strike.
In the past two years, 26 have stopped filling judicial vacancies, 34 have stopped replacing clerks, 31 have frozen or cut the salaries of judges or staff, 16 have furloughed clerical staff, and nine have furloughed judges.
Because a lot of the cost of the licensing procress is the learning curve of doing the first one, experienced clerical staff can complete the licensing fairly efficiently, and help to shield more senior managers from ever having to spend even five minutes of their day worrying about the process.
About 70 Unison members, clerical and administration staff, protested outside the trust's headquarters in Wakefield.
In the same month, the trust sent redundancy letters to 74 members of clerical and admin staff.
Unions fighting potential job cuts at three NHS hospitals in West Yorkshire have been invited to talks following a three-day strike by clerical and administration staff.
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