We explore incidence structures of nine points in the projective plane, particularly those contained in an irreducible cubic curve. We classify these according to the level of the structure and the field within which they exist. Under certain conditions we find 162 incidence structures, of those 158 are realizable over some ambient space, 133 of those structures may lie on an irreducible cubic. The Hilbert function of the ideal of points of the structure can take one of only two possible forms.
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