Here's all I have on Keais:
1790 Census

Keys, Milly 4 Beaufort 1790 p.126

Kies, Nathaniel 22326 p.126

1809-1814 Minutes

1809 March, will of William Keais proved by Joseph Clark, James Redsmund?

March, on motion, the boy named Francis who was Xavier? Keais who was an apprentice to Francis Xavier deceased be bound apprentice to Peter Land aged 6 years, shoemaker

1810 Census

Amey 114 Keaes, Amey 2 p.114

Clary 114 Keaes, Clary 5 Beaufort p.114

Henry 126

Mary 117

Milley 117

Salley 127

Silva 127 Keais, Silvy 4 p.127

1812 June, Dishcarged George Keys a free boy of Color who was bound at said time to B. Newman as an apprentice recinded.

George Keys, a free boy of Color, 12 who was bound to Winfred Waters bound to George Langley, cooper

1814 March, free Boy of Color named John Keys 14 Son of Avery? Keais bound to Henry McCabe to be a wheelwright.

March, Frank or Francis Keais a free Boy of Color now 12, apprenticed to Daniel King, cooper

June Court, Daniel Keais, 7 on 14 Apl 1814, and David Keais, 9 in Feby 1814 free boys of Color, bound to William Orell shoemaker.

1820 Census

Keis, Penny 01-001, p.23

Keis, Milly 102-0201, p.23

Keis, Sally 3-101, p.23

Keis, Mary -301, p.23

Keis, Nancy 2-101, p.24

Paul