getBuildsSlaves.groovy

def jenkins = Jenkins.getInstance()
def jobList = ["job1", "job2", "job3"]

//time frame is for example, you should choose a  start build and an end build and take their timestamps
long startFrameTime = 1475758795672L 
long endFrameTime = 1475779098244L

jobList.each{ jobName ->
  def job = jenkins.getItem(jobName)
  def bld = job.getBuilds().byTimestamp(startFrameTime,endFrameTime)
  println "***** Job: ${job.name} ******"
  bld.each{ b->
    println "Build: ${b.number}, Slave: ${b.getBuiltOn()}"
  }
}