Complex sentence: Gilbert was probably only the fourth Aboriginal to play first-class cricket in Australia and to be in serious contention for inclusion in the national side; the others being Johnny Mullagh (1868), Alec Henry (1901) and Jack Marsh (1902).
Split into simpler sentences: Gilbert was probably only the fourth Aboriginal to play first-class cricket in Australia and to be in serious contention for inclusion in the national side. The previous being Johnny Mullagh (1868), Alec Henry (1901) and Jack Marsh (1902).