Winterizing Trailers and answered Prayer

After the first day and meeting Robert (all names are changed) we didn't have a plan to go back to the park. I thought it was neat to pray with some people, shared the story that next Sunday and thought it was done. After the service a person involved with a county wide service project came up to me and asked if this park needed any help. I thought well we went over there once maybe we can go back. The next day Doug and I went back to the park left a message for Robert and left not knowing if he would call us or not. Within an hour he called me. I asked him if he had any work projects we could do for the park. His first question was "how much is this going to cost?" I assured him it was free. We agreed to meet during the week and talk about what we could do.
Wednesday night of that week three of us went over to Robert's trailer and talked to him about the project. Robert told us that we cold winterize the trailers. The task involved wrapping plastic at the base of skirting of the trailers. This was were the pipes were located and in the past they would have pipes freeze. If one pipe froze than the whole parks water supply would have to be turned off until it could be fixed.
There was also a couple named Dave and Joan who lived in trailer number 7. We found out that night the park was known by trailer numbers as opposed to people's names. Number 7 was putting on an addition and had a huge hole in the side of their trailer.
That night we went and looked at the hole, the two other guys with me talked to Dave and got a feel for how much work could be done and agreed to help him that coming Saturday.

That Saturday arrived and we had a group of about 15 who went into the park. The park had become much more friendly since the first day Doug and I had tried to pray with people.
Robert was the park maintance man and knew everyone. Robert knew everyone and was well prepared for that morning when we arrived.
There was an older gentleman who lived in #10 who in Robert's words "was close to death." We didn't meet him but were able to winterize his trailer. Dave and Joan's addition was worked on along with winterizing Linda's trailer which was #3 and Roger's who lived in number 5.
We had one small issue with Linda's trailer while covering her windows on the inside one of the volunteers knocked off a set of glass goblets. They both broke, Robert took the blame but we felt bad and said we would buy a new set for her.
Joan came up to a group of us half way through the day. She was smiling ear to ear. She said something to the effect of "I told Dave you would come." We were puzzled. So we asked please explain. She had been going to a church for some time and Dave had never went with her. When he started this project he asked Joan if any of her church friends would help out? She told him she would ask. She ended up not going to church the week before due to a sickness and had prayed that God would send someone to help. God had sent someone to help, it was us. We were different church people but God had answered Joan's prayer.
We were pretty excited and thought maybe this was the reason why we had felt God had asked us to pray in this neighborhood.