1,294. The Unveiling
199:17 The practice in some places is not to erect headstones until after twelve months. This is because the headstone is made for one's prestige and within the first twelve months one is still distressed. Another reason for the headstone is so we don't forget the deceased in our hearts and there is no danger of this until after twelve months. In some places, they are not particular about this.
200:1 If a body is waiting to be buried on yom tov, a Jew should not deal with him on the first day. This is the case even if it's not possible to have a non-Jew handle things and even if there is concern that the body might start to stink. In any case, a Jew may not bury the deceased on the first day of yom tov but if it's possible to have a non-Jew bury him - meaning that the non-Jew digs the grave, cuts the lumber or makes the coffin, and sews the burial shrouds - then it is permitted. However, dressing the body, warming the water, performing the purification, taking the body out, and placing it in the grave may all be performed by a Jew. Filling the grave with dirt should be done by a non-Jew. If possible, the body should be purified without using a cloth, so that one doesn't come to wring it out.