> as lemmas

1869 Morning Herald (Titusville, Pa.) 23 June He had attained his majority and was eligible to union membership [sc. of the Columbia Typographical Union].

1911 M. W. Ovington Half Man 98 The bricklayers..send men North with union membership, who easily transfer to New York locals.

2006 T. Attwood Increasing Efficiency School Admin. vi. 17 Some staff were members of the union..while some had no union membership.