An Aboriginal Reserve is declared at Sackville Ridge

1889 September 18. An Aboriginal Reserve is declared at Sackville Ridge (Portland Head). For several decades it is the largest designated reserve in the Sydney area, outside of La Perouse. It is in two parts at first.

1. Ab Res gazetted 23958. On Cumberland Reach on Hawkesbury River, 11 miles from Wilberforce, area 150 acres, all scrub and rocks except for 3 acres. Unfenced, uncultivated, one bark hut occupied by Thomas Dillon and his family. (Dillon & Onus families). Reserve was named Sackville Reach Aborigines Reserve.

2. Reserve 23957 gazetted. On Kent Reach on Hawkesbury River, 9 miles from Wilberforce, 30 acres, all scrub and rocks except for half an acre, area cleared and area under cultivation is nil. One slab hut is occupied by Thomas Onus

3. A third part is added to the Sackville Reserve: No. 28546. 40 acres next to reserve 9857. One end of the reserve is situated in 2012 at Jerimuda Bed & Breakfast, 72 Laws Farm Road, Lower Portland 2756.