Bonney made the gray stuff. Nice quality tools.
No. The OP's tools were made in Brampton, Ontario (Canada). The Gray-Bonney partnership didn't last very long, and was over by about 1960, and the OP's ratchet is much newer than that. Gray still makes ratchets that look pretty much like the one the OP has, except the ones in current production are high polish chrome instead of satin, and the mechanisms have higher tooth counts.
Gray doesn't market their stuff in the US, so most Americans don't know the brand, but it's a real common one in Canada, especially among industrial/heavy equipment/mining/oil & gas/etc users.
Their first line stuff is roughly equivalent to Proto in price and quality (IMHO). They make their own sockets, ratchets, and wrenches in Brampton, but some of their stuff is outsourced. For example, a lot of the pliers they sell seem to be NWS re-brands (made in Germany).
They also have an economy line of tools under the "Dynamic Tools" brand name. Those seem to be mainly made in Taiwan, and unlike the "Gray Tools" branded stuff, the Dynamic tools are also sold in the US (through Amazon and other outlets).