diff --git a/lib/http/rpc.js b/lib/http/rpc.js
index b03e977d..4d4cc5a6 100644
--- a/lib/http/rpc.js
+++ b/lib/http/rpc.js
@@ -1069,7 +1069,7 @@ RPC.prototype.getmempoolinfo = function getmempoolinfo(args, callback) {
 };
 
 RPC.prototype.getmempoolancestors = function getmempoolancestors(args, callback) {
-  var hash, entry;
+  var i, hash, verbose, entry, entries;
 
   if (args.help || args.length < 1 || args.length > 2)
     return callback(new RPCError('getmempoolancestors txid (verbose)'));
@@ -1079,16 +1079,29 @@ RPC.prototype.getmempoolancestors = function getmempoolancestors(args, callback)
   if (!hash)
     return callback(new RPCError('Invalid parameter.'));
 
+  if (args.length > 1)
+    verbose = toBool(args[1], false);
+
   entry = this.mempool.getEntry(hash);
 
   if (!entry)
     return callback(new RPCError('Transaction not in mempool.'));
 
-  callback(new Error('Not implemented.'));
+  entries = this.mempool.getAncestors(entry.tx);
+
+  if (verbose) {
+    for (i = 0; i < entries.length; i++)
+      entries[i] = this._entryToJSON(entries[i]);
+  } else {
+    for (i = 0; i < entries.length; i++)
+      entries[i] = entries[i].tx.rhash;
+  }
+
+  callback(null, entries);
 };
 
 RPC.prototype.getmempooldescendants = function getmempooldescendants(args, callback) {
-  var hash, entry;
+  var i, hash, verbose, entry, entries;
 
   if (args.help || args.length < 1 || args.length > 2)
     return callback(new RPCError('getmempooldescendants txid (verbose)'));
@@ -1098,12 +1111,25 @@ RPC.prototype.getmempooldescendants = function getmempooldescendants(args, callb
   if (!hash)
     return callback(new RPCError('Invalid parameter.'));
 
+  if (args.length > 1)
+    verbose = toBool(args[1], false);
+
   entry = this.mempool.getEntry(hash);
 
   if (!entry)
     return callback(new RPCError('Transaction not in mempool.'));
 
-  callback(new Error('Not implemented.'));
+  entries = this.mempool.getDescendants(entry.tx);
+
+  if (verbose) {
+    for (i = 0; i < entries.length; i++)
+      entries[i] = this._entryToJSON(entries[i]);
+  } else {
+    for (i = 0; i < entries.length; i++)
+      entries[i] = entries[i].tx.rhash;
+  }
+
+  callback(null, entries);
 };
 
 RPC.prototype.getmempoolentry = function getmempoolentry(args, callback) {
@@ -2608,13 +2634,13 @@ RPC.prototype.dumpwallet = function dumpwallet(args, callback) {
     utils.forEachSerial(hashes, function(hash, next) {
       self.wallet.getKeyRing(hash, function(err, ring) {
         if (err)
-          return callback(err);
+          return next(err);
 
         if (!ring)
           return next();
 
         if (!self.wallet.master.key)
-          return callback(new RPCError('Wallet is locked.'));
+          return next(new RPCError('Wallet is locked.'));
 
         address = ring.getAddress('base58');
         fmt = '%s %s label= addr=%s';