Section 19.15. Notice by publication

1. Notice may be given by publication
  if the office does not:
    (a) know the identity of the lender; or
    (b) know the address of the lender; or
    (c) receive proof that the notice mailed under section 19.14  of  this
  article was received within thirty days of mailing.
    2.  Notice by publication must be given at least once a week for three
  consecutive weeks in a newspaper of general circulation in:
    (a) the county in which the property is held by the office; and
    (b) the county of the lender's last address, if known.   The  date  of
  notice  under  this subdivision shall be the date of the third published
  notice.