John Swire's China Navigation Co was formed in 1872. Butterfield and Swire was the agency company with offices in most far eastern countries.
In 2000 China Navigation Co had twelve ships still operating, being engaged in world wide trades with strong feeder connections. Chief Container Services trade from Australia and NZ to Pacific Islands. I believe they also own Bank Line.
Duncan Hawes Merchant Fleets No 39 has full history.
The answer is that for one single year in the 1860's he was John Samuel Swire's business partner in Shanghai; they had a falling out and The Senior bought him out but a century went by before it was thought worthwhile to take his name off!
I cant find anything about World Wide in the Hong Kong Shipping section. I sailed with them in the '60's when they had just taken over Wheelock Marden and had a mixed fleet of old tankers and general cargo ships. Had some great times on those old rattlers 'World Transport', 'World Pelagic' and 'Funabashi' !...
I believe they still exist under different names and in Singapore, not Hong Kong. World Wide owner Sir Y.K. Pao had no sons, only daughters. One of them married a European guy who became the director. The successors of World Wide are now split into two sections, for bulkers (Berge Bulk) and tankers (BW). They run big fleets of VLOCs and VLCCs.