Financial support for Proposition B — the ballot initiative that targeted Austin’s poorest residents by reinstating a criminal ban against camping in public — included contributions from many of the city’s wealthiest residents and business leaders.

An examination of campaign finance records revealed Save Austin Now — the political action committee behind the successful push to bring back the ban — tapped into the wallets of dozens of local millionaires and billionaireswith financial stakes in the city’s economic success.

In total, Save Austin Now raised $1.9 million in support of Prop B — the second largest amount ever in a city of Austin election. It received about 4,100 donations. Of them, 71 were for $5,000 or more and 47 for $10,000 or more.

That money funded robust efforts to communicate with voters ahead of the May 1 election during a time leaders for the opposition fundraising group say they struggled to do the same because of limited resources. Among the pro-Prop B expenditures from the money raised — advertisement space on 29 billboards.

Austin residents experiencing homelessness camp near Austin City Hall on Thursday. Save Austin Now raised $1.9 million in support of Prop B, the second largest amount ever in a city of Austin election. The measure criminalizes camping in public and adds restrictions on panhandling and sleeping and sitting in public.

With four weeks to go before early voting opened April 19, the anti-prop B group Homes Not Handcuffs had raised just $23,000 in monetary and in-kind donations — $415,000 shy of Save Austin Now’s total at the time.

Save Austin Now raised an additional $819,000 by the next reporting deadline, eight days before election day. It picked up $655,000 the rest of the way.